Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.

Application Summary:

1965-1972 Avanti II; 1977-1985 Avanti II; 1987-1991 Avanti II; 1965-1969 Bizzarrini GT America; 1977-1981 Buick Century; 1991 Buick Commercial Chassis; 1994-1996 Buick Commercial Chassis; 1978 Buick LeSabre; 1977-1980 Buick Regal; 1982-1987 Buick Regal; 1991 Buick Roadmaster; 1977-1979 Buick Skylark; 1991-1992 Cadillac Brougham; 1994-1996 Cadillac Commercial Chassis; 1966-1974 Checker Aerobus; 1969-1970 Checker Deluxe; 1965-1982 Checker Marathon; 1969-1974 Checker Taxicab; 1957-1959 Chevrolet 3100; 1959 Chevrolet 3B; 1959 Chevrolet 3C; 1959 Chevrolet 3D; 1959 Chevrolet 3E; 1959 Chevrolet 3F; 1959 Chevrolet 3G; 1957-1975 Chevrolet Bel Air; 1958-1972 Chevrolet Biscayne; 1969-1974 Chevrolet Blazer; 1987-1994 Chevrolet Blazer; 1959-1961 Chevrolet Brookwood; 1969-1972 Chevrolet Brookwood; 1975-1986 Chevrolet C10; 1960-1974 Chevrolet C10 Pickup; 1967-1986 Chevrolet C10 Suburban; 1982-1985 Chevrolet C15; 1988-1994 Chevrolet C1500; 1992-1994 Chevrolet C1500 Suburban; 1975-1987 Chevrolet C20; 1960-1974 Chevrolet C20 Pickup; 1967-1986 Chevrolet C20 Suburban; 1988-1994 Chevrolet C2500; 1992-1994 Chevrolet C2500 Suburban; 1975-1986 Chevrolet C30; 1960-1974 Chevrolet C30 Pickup; 1983-1994 Chevrolet C35; 1988-1994 Chevrolet C3500; 1960-1962 Chevrolet C40; 1967-1986 Chevrolet Camaro; 1966-1988 Chevrolet Caprice; 1994-1996 Chevrolet Caprice; 1964-1973 Chevrolet Chevelle; 1963-1968 Chevrolet Chevy II; 1991-1992 Chevrolet Commercial Chassis; 1994 Chevrolet Commercial Chassis; 1957-1981 Chevrolet Corvette; 1957-1958 Chevrolet Del Ray; 1959-1960 Chevrolet El Camino; 1964-1987 Chevrolet El Camino; 1969-1970 Chevrolet Estate; 1975-1994 Chevrolet G10; 1974 Chevrolet G10 Van; 1975-1994 Chevrolet G20; 1967-1974 Chevrolet G20 Van; 1975-1994 Chevrolet G30; 1974 Chevrolet G30 Van; 1958-1985 Chevrolet Impala; 1975-1986 Chevrolet K10; 1960-1974 Chevrolet K10 Pickup; 1967-1986 Chevrolet K10 Suburban; 1988-1994 Chevrolet K1500; 1992-1994 Chevrolet K1500 Suburban; 1975-1986 Chevrolet K20; ...
Advertised Exhaust Duration 313
Advertised Intake Duration 295
Amazon ASIN B002EE5CMG
Assembly Lubricant Included Yes
Basic Operating RPM Range 2,500-6,400
C.A.R.B. E.O. Number N/A
C.A.R.B. Exempt for California Certified Vehicles Manufactured B Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Be 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.
C.A.R.B. Exemption Reason N/A
California Proposition 65 Yes
Cam Type Hydraulic Flat Tappet
Camshaft Gear Attachment 3-Bolt
Camshaft Material Cast Iron
Camshaft Series Thumpr
Country of Origin (Primary) US
Engine Family Chevrolet 262-400 c.i. 8 Cylinder (1958-1998)
Engine Make/Size Chevy Small Block (262-400)
Exh. Duration @ .050 in. (Deg) 257
Exh. Duration Advertised (Deg) 313
Exhaust Duration at .050 inch Lift 257
Exhaust Valve Lift 0.486
Exhaust Valve Lift (in.) 0.486
Gaskets Included No
Harmonized Tariff Code (Schedule B) 8409914000
Hazardous Material Code Y
Int. Duration @ .050 in. (Deg) 243
Int. Duration Advertised (Deg) 295
Intake Duration at .050 Inch Lift 243
Intake Valve Lift 0.5
Intake Valve Lift (in.) 0.500
K-Kit Upgrade K12-602-4
Kit Type CL-Kit - Cam and Lifter Kit
Life Cycle Status Code Available to Order
Lifter Style Hydraulic Flat Tappet
Lifter Type Hydraulic Flat Tappet
Lifters Included Yes
Lobe Separation 107
Locks Included No
NAFTA Preference Criterion Code B
Retainers Included No
RPM Range 2500-6400
SDR Required Flag Y
SDS Sheet Number COMP4-107
SK-Kit Upgrade GK12-602-4
Timing Chain and Gears Included No
Usage Street/Strip
Valve Springs Required Yes
Valve Stem Seals Included No
Warranty Time 12
We install this brand

Competition Cams CL12-602-4 Big Mutha Thumpr Camshaft/Lifter Kit

Vehicle Fitment

Fitment: Year Required

Product Information

The AAM Group™ Proposition 65
Proposition 65 warning graphic (For California Residents)
WARNING: Cancer and Reproductive Harm -