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Edelbrock Rollin' Thunder Camshaft for 1955-86 Small-Block Chevy

Part # 2210

Description

Edelbrock Rollin' Thunder Camshaft #2210 is designed for small-block Chevy engines from 1957-86 and produce optimum torque from the low-end to the mid-range. Rollin' Thunder camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. They are smooth idling cams for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you'll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 440HP and 425 Ft Lbs of Torque when paired with Pro-Flo XT EFI system #3528 and RPM E-Tec cylinder heads #60975. Must be used with thrust button, high stall torque converter, and stock ratio rocker arms only. Camshaft specifications: - Intake duration: 262 Degrees - Exhaust duration: 266 Degrees - Intake lift: .628" - Exhaust lift: .608" - Lobe separation: 114 Degree - Intake Center Line: 109 Degree - Vacuum: 13"

Specifications

Advertised Exhaust Duration300 deg
Advertised Intake Duration296 deg
Cam TypeRoller
Computer Controlled CompatibleYes
Exhaust Duration at .050 inch Lift238 deg
Exhaust Valve Lift0.365 in
Exhaust Valve Lift with Factory Rocker Arm Ratio0.548 in
Intake Duration at .050 Inch Lift234 deg
Intake Valve Lift0.365 in
Intake Valve Lift with Factory Rocker Arm Ratio0.539 in
Lifter TypeRoller
Lobe Separation114 deg
UPC / GTIN00085347022106

Fits these vehicles

YearMakeModelSubmodelEngineNote
1965 - 1968AvantiII-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1971AvantiII-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1973 - 1974AvantiII-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976AvantiII-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1980AvantiII-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1985AvantiII-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977BuickCenturyBase, Custom5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978BuickCentury-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979BuickCenturyCustom, Limited, Special5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980BuickCenturyBase, Estate, Limited5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981BuickCenturyBase, Limited4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1978BuickLeSabreBase, Custom5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982BuickLeSabreCustom, Limited4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977BuickRegal-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1980BuickRegalBase, Limited5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981BuickRegalBase, Limited4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982BuickRegalBase, Estate Wagon, Limited4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983BuickRegalBase, Estate Wagon, Limited5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1984BuickRegalBase5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1985 - 1986BuickRegalBase, Limited5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979BuickSkylark-5.0L V8, 5.7L V81500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1966 - 1968CheckerAerobus-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1969 - 1974CheckerAerobus-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969CheckerDeluxe-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.
1970CheckerDeluxe-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1965 - 1967CheckerMarathon-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968CheckerMarathon-5.0L V8, 5.3L V8, 5.4L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969CheckerMarathon-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970 - 1974CheckerMarathonBaseHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976CheckerMarathon-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979CheckerMarathon-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1981CheckerMarathon-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982CheckerMarathon-4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969CheckerTaxicab-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1974CheckerTaxicab-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1959Chevrolet3B-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959Chevrolet3C-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959Chevrolet3D-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959Chevrolet3E-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959Chevrolet3F-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959Chevrolet3G-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958ChevroletBel Air-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959ChevroletBel Air-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1961ChevroletBel Air-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1962 - 1967ChevroletBel Air-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletBel Air-5.0L V8, 5.3L V8, 5.4L V81500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1974ChevroletBel Air-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975ChevroletBel Air-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981ChevroletBel Air-4.4L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1958 - 1959ChevroletBiscayne-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960ChevroletBiscayne-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1961ChevroletBiscayne-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1962 - 1967ChevroletBiscayne-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletBiscayne-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969ChevroletBiscayne-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1972ChevroletBiscayne-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletBlazer-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletBlazer-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1961ChevroletBrookwood-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1970ChevroletBrookwood-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1971ChevroletBrookwood-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1972ChevroletBrookwood-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletC10-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976ChevroletC10-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1980ChevroletC10-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981ChevroletC10-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982 - 1986ChevroletC10-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1960 - 1965ChevroletC10 Pickup-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1966 - 1967ChevroletC10 Pickup-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletC10 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletC10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970 - 1973ChevroletC10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletC10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletC10 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletC10 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletC10 Suburban-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletC10 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976ChevroletC10 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979ChevroletC10 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980ChevroletC10 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986ChevroletC10 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975ChevroletC20-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976ChevroletC20-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978ChevroletC20-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980ChevroletC20-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986ChevroletC20-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1965ChevroletC20 Pickup-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1966 - 1967ChevroletC20 Pickup-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletC20 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1969 - 1973ChevroletC20 Pickup-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletC20 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletC20 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletC20 Suburban-5.0L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletC20 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletC20 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975ChevroletC20 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976ChevroletC20 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1979ChevroletC20 Suburban-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980ChevroletC20 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986ChevroletC20 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975ChevroletC30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976 - 1977ChevroletC30-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978ChevroletC30-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1986ChevroletC30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1965ChevroletC30 Pickup-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1966 - 1967ChevroletC30 Pickup-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletC30 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletC30 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1974ChevroletC30 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1962ChevroletC40-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletCamaroBase, RS, SS, Z28Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletCamaroBase, RS, SS, Z28Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1971ChevroletCamaroBase, RS, SS, Z28Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1972ChevroletCamaroBase, RS, SS, Z28Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1973ChevroletCamaroBase, LT, RSHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1974ChevroletCamaro-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletCamaro-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976 - 1979ChevroletCamaro-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1981ChevroletCamaro-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982 - 1986ChevroletCamaro-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1966 - 1967ChevroletCaprice-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletCaprice-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletCaprice-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970 - 1974ChevroletCaprice-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976ChevroletCaprice-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1979ChevroletCaprice-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980ChevroletCaprice-4.4L V8, 5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1982ChevroletCaprice-4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1984ChevroletCaprice-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1985ChevroletCapriceClassic5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1986ChevroletCaprice-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1964 - 1966ChevroletChevelle-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletChevelle300, 300 Deluxe4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletChevelle300, 300 Deluxe, Concours, Malibu, NomadHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1969 - 1973ChevroletChevelle-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1963 - 1964ChevroletChevy II-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1965 - 1966ChevroletChevy II-4.6L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletChevy II-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletChevy II-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957 - 1961ChevroletCorvette-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1962 - 1967ChevroletCorvette-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletCorvette-5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1971ChevroletCorvette-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1972ChevroletCorvette-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1973ChevroletCorvette-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletCorvette-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1978ChevroletCorvette-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979ChevroletCorvette-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980ChevroletCorvette-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1982ChevroletCorvette-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1984 - 1986ChevroletCorvette-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957ChevroletDel Ray-4.3L V8, 4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958ChevroletDel Ray-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1959 - 1960ChevroletEl Camino-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1964 - 1965ChevroletEl Camino-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1966 - 1967ChevroletEl Camino-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968 - 1969ChevroletEl CaminoBase, CustomHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1970 - 1973ChevroletEl Camino-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletEl Camino-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletEl CaminoBase, Classic, SS5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976ChevroletEl Camino-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1978ChevroletEl Camino-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979ChevroletEl Camino-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1982ChevroletEl Camino-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1983 - 1986ChevroletEl Camino-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969ChevroletEstate-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970ChevroletEstate-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975ChevroletG10-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976ChevroletG10-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1986ChevroletG10-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968 - 1972ChevroletG10 Van-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1973ChevroletG10 VanBase, Sportvan5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletG10 VanBase, SportvanIdle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletG20-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976ChevroletG20Beauville, Chevy Van, Sportvan5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1977 - 1979ChevroletG20-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980ChevroletG20-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986ChevroletG20-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletG20 Van-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968 - 1969ChevroletG20 Van-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970ChevroletG20 Van-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1971 - 1973ChevroletG20 Van-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletG20 Van-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976ChevroletG30Beauville, Chevy Van, Hi-Cube, Sportvan5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977ChevroletG30-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1979ChevroletG30-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980ChevroletG30-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981ChevroletG30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982ChevroletG30-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1983 - 1984ChevroletG30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1985ChevroletG30-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1986ChevroletG30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletG30 VanBaseHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1961ChevroletImpala-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1962 - 1963ChevroletImpala-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1964ChevroletImpala-4.6L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1965ChevroletImpala-4.6L V8, 5.3L V8, 5.4L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1966 - 1967ChevroletImpala-4.6L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletImpala-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletImpala-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1974ChevroletImpala-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976ChevroletImpala-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979ChevroletImpala-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1982ChevroletImpala-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1985ChevroletImpala-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976ChevroletK10-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1978ChevroletK10-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1980ChevroletK10-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986ChevroletK10-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1960 - 1965ChevroletK10 Pickup-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1966 - 1967ChevroletK10 Pickup-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1968ChevroletK10 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletK10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1970 - 1973ChevroletK10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletK10 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletK10 Suburban-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968ChevroletK10 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletK10 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970 - 1974ChevroletK10 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976ChevroletK10 Suburban-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979ChevroletK10 Suburban-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980ChevroletK10 Suburban-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981ChevroletK10 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982ChevroletK10 Suburban-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983ChevroletK10 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1984 - 1985ChevroletK10 Suburban-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1986ChevroletK10 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976ChevroletK20-5.7L V8, 6.6L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1978ChevroletK20-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1980ChevroletK20-5.7L V8, 6.6L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1984ChevroletK20-5.7L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1985ChevroletK20-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1986ChevroletK20-5.7L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1967ChevroletK20 Panel-4.6L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1960 - 1965ChevroletK20 Pickup-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1966 - 1967ChevroletK20 Pickup-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletK20 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1973ChevroletK20 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletK20 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967ChevroletK20 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletK20 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletK20 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletK20 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976ChevroletK20 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1977 - 1978ChevroletK20 Suburban-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1979 - 1980ChevroletK20 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1981 - 1984ChevroletK20 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1985 - 1986ChevroletK20 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1980ChevroletK30-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986ChevroletK30-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968ChevroletK30 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973ChevroletK30 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974ChevroletK30 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976ChevroletK5 Blazer-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979ChevroletK5 Blazer-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1986ChevroletK5 Blazer-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1959 - 1961ChevroletKingswood-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969ChevroletKingswood-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1972ChevroletKingswood-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletMalibuClassic5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1978ChevroletMalibu-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1981ChevroletMalibu-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982ChevroletMalibu-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1983ChevroletMalibu-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1972ChevroletMonte Carlo-Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1973ChevroletMonte CarloBaseHyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1974ChevroletMonte Carlo-Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1975ChevroletMonte Carlo-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976ChevroletMonte Carlo-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977ChevroletMonte Carlo-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978ChevroletMonte Carlo-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1982ChevroletMonte Carlo-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1986ChevroletMonte Carlo-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletMonza-4.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976ChevroletMonza2+2, 2+2 Spyder, Base4.3L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979ChevroletMonza-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1961ChevroletNomad-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1969 - 1973ChevroletNova-Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974ChevroletNova-Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975ChevroletNova-4.3L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976 - 1979ChevroletNova-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957ChevroletOne-Fifty Series-4.3L V8, 4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959 - 1961ChevroletParkwood-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957ChevroletSedan Delivery-4.3L V8, 4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958ChevroletSedan Delivery-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1960 - 1965ChevroletSuburban-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1966ChevroletSuburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969ChevroletTownsman-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1970 - 1972ChevroletTownsman-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957ChevroletTruck-4.3L V8, 4.6L V8, 5.3L V8Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958ChevroletTruck-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1960ChevroletTruck-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957ChevroletTwo-Ten Series-4.3L V8, 4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958ChevroletYeoman-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1983 - 1985ExcaliburPhaeton-5.0L V8Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1986ExcaliburPhaeton-5.0L V8, 5.7L V8Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMC100-5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMC100-5.3L V8, 5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1963GMC1000 Series-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957GMC150-5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMC150-5.3L V8, 5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1963GMC1500 Series-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMC250-5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMC250-5.3L V8, 5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1963GMC2500 Series-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMC300-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMC300-5.3L V8, 5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1966GMC3000-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1966GMC3500-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMC350-8-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMC350-8-5.3L V8, 5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMC370-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMC370-5.3L V8, 5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975GMCC15-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976GMCC15-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977GMCC15-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978GMCC15-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980GMCC1500-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986GMCC1500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979GMCC1500 Suburban-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1980GMCC1500 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1981 - 1986GMCC1500 Suburban-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1967GMCC15/C1500 Pickup-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1968GMCC15/C1500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1973GMCC15/C1500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1974GMCC15/C1500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967GMCC15/C1500 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968GMCC15/C1500 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1973GMCC15/C1500 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974GMCC15/C1500 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976GMCC15 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCC15 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975GMCC25-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976GMCC25-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCC25-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979GMCC2500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1986GMCC2500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979GMCC2500 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980GMCC2500 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1981GMCC2500 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982 - 1986GMCC2500 Suburban-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCC25/C2500 Pickup-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968GMCC25/C2500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1974GMCC25/C2500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCC25/C2500 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968GMCC25/C2500 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969 - 1974GMCC25/C2500 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976GMCC25 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977GMCC25 Suburban-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978GMCC25 Suburban-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975GMCC35-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976 - 1977GMCC35-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1978GMCC35-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979GMCC3500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1985GMCC3500-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1986GMCC3500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCC35/C3500 Pickup-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968GMCC35/C3500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1974GMCC35/C3500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978GMCCaballero-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1979GMCCaballero-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1980 - 1982GMCCaballero-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1986GMCCaballero-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCF350-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCF370-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCFM340-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCFM350-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975GMCG15-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976GMCG15-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCG15-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979GMCG1500-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1986GMCG1500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCG15/G1500 Van-4.6L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1968 - 1969GMCG15/G1500 Van-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1971GMCG15/G1500 VanBase5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1972 - 1973GMCG15/G1500 Van-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974GMCG15/G1500 Van-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976GMCG25Rally, Rally STX, Vandura5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1977 - 1978GMCG25-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980GMCG2500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986GMCG2500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCG25/G2500 Van-4.6L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968 - 1973GMCG25/G2500 Van-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974GMCG25/G2500 Van-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975GMCG35-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976GMCG35Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1978GMCG35-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1980GMCG3500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986GMCG3500-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1973GMCG35/G3500 Van-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974GMCG35/G3500 Van-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970 - 1973GMCJimmy-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.
1974GMCJimmy-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976GMCJimmy-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979GMCJimmy-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1986GMCJimmy-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976GMCK15-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCK15-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1980GMCK1500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986GMCK1500-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979GMCK1500 Suburban-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980GMCK1500 Suburban-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981GMCK1500 Suburban-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982GMCK1500 Suburban-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1986GMCK1500 Suburban-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967GMCK15/K1500 Pickup-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968GMCK15/K1500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1974GMCK15/K1500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCK15/K1500 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968GMCK15/K1500 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973GMCK15/K1500 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974GMCK15/K1500 Suburban-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976GMCK15 Suburban-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCK15 Suburban-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975 - 1976GMCK25-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCK25-5.0L V8, 5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980GMCK2500-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1986GMCK2500-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1979 - 1980GMCK2500 Suburban-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986GMCK2500 Suburban-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1967GMCK25/K2500 Pickup-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968GMCK25/K2500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973GMCK25/K2500 Pickup-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974GMCK25/K2500 Pickup-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1967GMCK25/K2500 Suburban-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968GMCK25/K2500 Suburban-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1973GMCK25/K2500 Suburban-Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974GMCK25/K2500 Suburban-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975 - 1976GMCK25 Suburban-5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCK25 Suburban-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1978GMCK35-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980GMCK3500-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981 - 1986GMCK3500-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968GMCK35/K3500 Pickup-5.0L V8, 5.3L V8, 5.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.
1969 - 1973GMCK35/K3500 Pickup-Hyd Roller; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1974GMCK35/K3500 Pickup-Hyd Roller; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCM300-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCPM150-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957GMCPM151-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMCPM151-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMCPM152-5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1958 - 1959GMCPM152-5.5L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957GMCPM153-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1959GMCPM153-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMCPM250-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMCPM251-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958GMCPM252-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958GMCPM253-5.5L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1958 - 1959GMCS300-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMCS370-5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles
1971 - 1973GMCSprint-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1974GMCSprint-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975GMCSprint-5.7L V8, 6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976GMCSprint-5.0L V8, 5.7L V8, 6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977GMCSprint-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960 - 1965GMCSuburban-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1957GMCTruck-5.3L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1959GMCTruck-5.3L V8, 5.5L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1960GMCTruck-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1964 - 1967Gordon-KeebleGK1-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1964 - 1967Gordon-KeebleIT-5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975OldsmobileCustom Cruiser-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977OldsmobileCustom Cruiser-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1979OldsmobileCutlass-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980OldsmobileCutlass-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981OldsmobileCutlass-4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1980OldsmobileCutlass Calais-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982OldsmobileCutlass Calais-4.4L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980OldsmobileCutlass Cruiser-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1982OldsmobileCutlass Cruiser-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1978OldsmobileCutlass Salon-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979OldsmobileCutlass SalonBase, Brougham5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980OldsmobileCutlass Salon-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978OldsmobileCutlass Supreme-5.0L V8, 5.7L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979 - 1980OldsmobileCutlass Supreme-5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1982OldsmobileCutlass Supreme-4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975OldsmobileDelta 88-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977OldsmobileDelta 88-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981OldsmobileDelta 88Royale, Royale Brougham4.4L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982OldsmobileDelta 88-4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979OldsmobileOmega-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979OldsmobileStarfire-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1964PontiacAcadian-4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1965 - 1967PontiacAcadian-4.6L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968PontiacAcadian-5.0L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1969 - 1971PontiacAcadian-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1964 - 1967PontiacBeaumont-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968PontiacBeaumont-5.0L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1969PontiacBeaumont-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1972PontiacBonneville-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1975PontiacBonneville-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1986PontiacBonneville-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975PontiacCatalinaBase6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1981PontiacCatalina-4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1972PontiacFirebird-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977PontiacFirebirdBase, Esprit, Formula5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1979PontiacFirebirdBase, Esprit, Formula5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980PontiacFirebird-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1981PontiacFirebirdBase, Esprit, Formula, Trans Am4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982 - 1986PontiacFirebird-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975PontiacGrand Am-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1980PontiacGrand Am-5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm
1975PontiacGrand LeMansSafari6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1977PontiacGrand LeMansBase5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1978PontiacGrand LeMansBase, SA, Safari5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979PontiacGrand LeMansBase, LE, Safari4.4L V8, 5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980PontiacGrand LeMansBase, LE, Safari4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981PontiacGrand LeMansBase, LE, SA4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1982PontiacGrand LeMansBR, Base4.4L V8, 5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983PontiacGrand LeMans-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975PontiacGrand Prix-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1976PontiacGrand PrixSJ6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1980PontiacGrand Prix-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1981 - 1982PontiacGrand Prix-4.4L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1983 - 1986PontiacGrand Prix-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1972PontiacGrand Safari-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1972PontiacGrandville-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1975PontiacGrandville-6.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.
1957PontiacLaurentian-4.3L V8, 4.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1961PontiacLaurentian-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1962 - 1967PontiacLaurentian-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1968 - 1969PontiacLaurentian-5.0L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1972 - 1974PontiacLaurentian-Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1976PontiacLaurentian-5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977PontiacLaurentian-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978 - 1979PontiacLaurentian-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1981PontiacLaurentian-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1975PontiacLeMansSafari6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977PontiacLeMansBase, Sport5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1978PontiacLeMans-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1979PontiacLeMans-4.4L V8, 5.0L V8, 5.7L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1980 - 1981PontiacLeMans-4.4L V8, 5.0L V8Hyd Roller; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1959 - 1961PontiacParisienne-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1962 - 1967PontiacParisienne-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968 - 1969PontiacParisienne-5.0L V8, 5.3L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970PontiacParisienne-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1972 - 1974PontiacParisienne-Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977 - 1979PontiacParisienne-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1980 - 1982PontiacParisienne-4.4L V8, 5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1983 - 1986PontiacParisienne-5.0L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1957PontiacPathfinder-4.3L V8, 4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958PontiacPathfinder-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1977 - 1979PontiacPhoenix-5.0L V8, 5.7L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller; Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1958 - 1961PontiacStrato-Chief-4.6L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1962 - 1967PontiacStrato-Chief-4.6L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1968 - 1969PontiacStrato-Chief-5.0L V8, 5.3L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1970PontiacStrato-Chief-5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.
1978 - 1979PontiacSunbirdBase5.0L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1971 - 1973PontiacVentura-5.0L V8Hyd Roller; 1500-6500rpm; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller
1977PontiacVentura-5.0L V8, 5.7L V8Hyd Roller; 1500-6500rpm; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Lobe Seps 114 Deg.; Intake Center Line 110 Deg.; Legal For Use On Pre-Pollution Controlled Vehicles; Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque
1970 - 1971StutzBlackhawk-6.6L V8Idle Vacuum - 13 inch; For Use On Pre-Pollution Controlled Vehicles (PPCV); Match w/Pro-Flo XT EFI System 3528 and Performer E-Tech Head 60975; This Combo Produces 440hp and 425 ft.-lbs of Torque; Legal For Use On Pre-Pollution Controlled Vehicles; Intake Center Line 110 Deg.; Lobe Seps 114 Deg.; Lift at Valve Int/Exh 0.539/0.548 in.; Adv. Dur. at 0.050 Int/Exh 234/238 Deg.; 1500-6500rpm; Hyd Roller