COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit Chevrolet Big Block 396-454 GK11-602-8

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Specifications:

BrandCOMP Cams
Part NumberGK11-602-8
GTIN00036584183358
Lifters IncludedYes
Pushrods IncludedNo
Lifter TypeHydraulic Roller
Exhaust Valve Lift0.554 in
Exhaust Duration At .050 Inch Lift257 dd
Intake Duration At .050 Inch Lift243 dd
Advertised Exhaust Duration319 dd
Advertised Intake Duration299 dd
Cam TypeHydraulic Roller
Basic Operating Rpm Range2,500-6,100
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.
Camshaft SeriesThumpr
Engine FamilyChevrolet 396-454 C.i. 8 Cylinder (1967-1996)
Gaskets IncludedNo
Intake Valve Lift0.57 in
Kit TypeGk-kit - Cam And Gear Kit
Locks IncludedNo
Retainers IncludedNo
Timing Chain And Gears IncludedYes
UsageStreet/strip
Valve Stem Seals IncludedNo

Specifications:

Description:

Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit for Chevrolet Big Block 396-454. Street/strip, needs 9.5:1 compression, 2800+ stall, intake, Gears, and headers, very rough idle.

COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit Chevrolet Big Block 396-454 GK11-602-8

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Specifications:

Specifications:

Description:

COMP Cams Big Mutha' Thumpr 243/257 Hydraulic Roller GK-Kit Chevrolet Big Block 396-454 GK11-602-8

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Specifications: