Orbital Parts is not a corporate affiliate of Edelbrock Group.

Free shipping over C$100
Toggle Nav
Cart 0 Shopping Cart Cart
COMP CamsMore from COMP Cams

COMP Cams Big Mutha' Thumpr 4/7 Swap 243/257 Hydraulic Roller Cam for Chevrolet 348-409

Part # 48-602-10

Description

Big Mutha' Thumpr 4/7 Swap 243/257 Hydraulic Roller Cam

Specifications

Advertised Exhaust Duration319 deg
Advertised Intake Duration299 deg
Assembly Lubricant IncludedNo
Basic Operating RPM Range2,500-6,400 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 Roller
Camshaft Gear Attachment3-Bolt
Camshaft MaterialBillet Steel
Camshaft SeriesThumpr 4 and 7 Swap Firing Order
Engine FamilyChevrolet 348-409 c.i. 8 Cylinder (1958-1965)
Exhaust Duration at .050 inch Lift257 deg
Exhaust Valve Lift0.571 in
Grind Number47S 299BMTHR-8
Intake Duration at .050 Inch Lift243 deg
Intake Valve Lift0.586 in
Lifter TypeHydraulic Roller
Lifters IncludedNo
Lobe Separation108 deg
Valve Springs RequiredYes
UPC / GTIN00036584267775