Comp Cams Big Mutha' Thumpr 243/257 Hydraulic Flat Cam GK-Kit for Chevrolet Small Block - GK12-602-4
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Big Mutha' Thumpr 243/257 Hydraulic Flat Cam GK-Kit for Chevrolet Small Block
PRODUCT NOTES:
Valve Stem Seals Included - No
Intake Valve Lift - 0.5 IN
Title - Big Mutha' Thumpr 243/257 Hydraulic Flat Cam GK-Kit for Chevrolet Small Block
Timing Chain and Gears Included - Yes
Retainers Included - No
Pushrods Included - No
Locks Included - No
Lifters Included - Yes
Lifter Type - Hydraulic Flat Tappet
K-Kit Upgrade - K12-602-4
Kit Type - GK-Kit - Cam and Gear Kit
Intake Duration at .050 Inch Lift - 243 DD
Advertised Exhaust Duration - 313 DD
Gaskets Included - No
Exhaust Valve Lift - 0.486 IN
Exhaust Duration at .050 inch Lift - 257 DD
Engine Family - Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Camshaft Series - Thumpr
Cam Type - Hydraulic Flat Tappet
California Proposition 65 - WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Basic Operating RPM Range - 2,500-6,400 R3
Advertised Intake Duration - 295 DD
Usage - Street/Strip
Amazon ASIN - B002EE77D8
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? - Yes, but must be a race/competition only 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 California Certified Vehicles Manufactured Before 1965? - 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. Exemption Reason - N/A
C.A.R.B. E.O. Number - N/A
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