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COMP CamsMore from COMP Cams

COMP Cams Drag Race 246/253 Hydraulic Flat Cam for Pontiac 265-455

Part # 51-316-4

Description

Hydraulic: Rough idle, 3500-4000 stall, 10:1 compression, 4.10 or lower Gear ratio.

Specifications

Advertised Exhaust Duration305 deg
Advertised Intake Duration296 deg
Amazon ASINB000P5GEDM
Assembly Lubricant IncludedYes
Basic Operating RPM Range3,000-6,000 RPM
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?No
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?Yes, but must be a race/competition only vehicle.
Cam TypeHydraulic Flat Tappet
Camshaft Gear Attachment1-Bolt
Camshaft MaterialCast Iron
Camshaft SeriesDrag Race
Engine FamilyPontiac 265-455 C.I. 8 Cylinder (1955-1981)
Exhaust Duration at .050 inch Lift253 deg
Exhaust Valve Lift0.577 in
Grind Number296AH-8
Intake Duration at .050 Inch Lift246 deg
Intake Valve Lift0.562 in
Lifter TypeHydraulic Flat Tappet
Lifters IncludedNo
Lobe Separation108 deg
UsageStreet/Strip
Valve Springs RequiredYes
UPC / GTIN00036584612186