COMP Cams Camshaft A8 279T H-107 T Thumper

Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes. High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. Fits AMC 290, 304, 343, 360, 390 and 401 Fits, Fitments 1966 American Motors Ambassador 990 1966 American Motors Ambassador Base 1966 American Motors American Base 1966 American Motors Classic 770 1966 American Motors Classic Base 1966 American Motors Marlin Base 1966 American Motors Rogue Base 1967 American Motors Ambassador 990 1967 American Motors Ambassador Base 1967 American Motors American Base 1967 American Motors Marlin Base 1967 American Motors Rebel 770 1967 American Motors Rebel Base 1967 American Motors Rebel SST 1968 American Motors Ambassador Base 1968 American Motors Ambassador DPL 1968 American Motors Ambassador SST 1968 American Motors American 440 1968 American Motors American Base 1968 American Motors American Rogue 1968 American Motors AMX Base 1968 American Motors Javelin Base 1968 American Motors Javelin SST 1968 American Motors Rebel 550 1968 American Motors Rebel 770 1968 American Motors Rebel SST 1969 American Motors Ambassador Base 1969 American Motors Ambassador DPL 1969 American Motors Ambassador SST 1969 American Motors AMX Base 1969 American Motors Javelin Base 1969 American Motors Javelin SST 1969 American Motors Rambler 440 1969 American Motors Rambler Base 1969 American Motors Rambler Hurst SC/Rambler 1969 American Motors Rambler Rogue 1969 American Motors Rebel Base 1969 American Motors Rebel SST 1970 American Motors Ambassador Base 1970 American Motors Ambassador DPL 1970 American Motors Ambassador SST 1970 American Motors AMX Base 1970 American Motors Hornet Base 1970 American Motors Hornet SST 1970 American Motors Javelin Base 1970 American Motors Javelin SST 1970 American Motors Javelin SST Mark Donohue 1970 American Motors Javelin SST Trans Am 1970 American Motors Rebel Base 1970 American Motors Rebel SST 1970 American Motors Rebel The Machine 1970 Jeep J-2500 Base 1970 Jeep J-2600 Base 1970 Jeep J-3800 Base 1971 American Motors Ambassador Brougham 1971 American Motors Ambassador DPL 1971 American Motors Ambassador SST 1971 American Motors Hornet Base 1971 American Motors Hornet SC/360 1971 American Motors Hornet Sportabout 1971 American Motors Hornet SST 1971 American Motors Javelin AMX 1971 American Motors Javelin Base 1971 American Motors Javelin SST 1971 American Motors Matador Base 1971 Jeep CJ5 Base 1971 Jeep CJ6 Base 1971 Jeep J-100 Base 1971 Jeep J-2500 Base 1971 Jeep J-2600 Base 1971 Jeep J-3800 Base 1971 Jeep J-4500 Base 1971 Jeep J-4600 Base 1971 Jeep J-4700 Base 1971 Jeep J-4800 Base 1972 American Motors Ambassador Brougham 1972 American Motors Ambassador SST 1972 American Motors Gremlin Base 1972 American Motors Hornet Sportabout 1972 American Motors Hornet SST 1972 American Motors Javelin AMX 1972 American Motors Javelin Base 1972 American Motors Javelin SST 1972 American Motors Matador Base 1972 Jeep CJ5 Base 1972 Jeep CJ6 Base 1972 Jeep Commando Base 1972 Jeep J-100 Base 1972 Jeep J-2500 Base 1972 Jeep J-2600 Base 1972 Jeep J-4500 Base 1972 Jeep J-4600 Base 1972 Jeep J-4700 Base 1972 Jeep J-4800 Base 1972 Jeep Wagoneer Base 1973 American Motors Ambassador Brougham 1973 American Motors Gremlin Base 1973 American Motors Hornet Base 1973 American Motors Hornet Sportabout 1973 American Motors Javelin AMX 1973 American Motors Javelin Base 1973 American Motors Matador Base 1973 Jeep CJ5 Base 1973 Jeep CJ6 Base 1973 Jeep Commando Base 1973 Jeep J-100 Base 1973 Jeep J-2500 Base 1973 Jeep J-2600 Base 1973 Jeep J-4500 Base 1973 Jeep J-4600 Base 1973 Jeep J-4700 Base 1973 Jeep J-4800 Base 1973 Jeep Wagoneer Base 1973 Jeep Wagoneer Custom 1974 American Motors Ambassador Brougham 1974 American Motors Gremlin Base 1974 American Motors Hornet Base 1974 American Motors Hornet Sportabout 1974 American Motors Javelin AMX 1974 American Motors Javelin Base 1974 American Motors Matador Base 1974 American Motors Matador Brougham 1974 American Motors Matador X 1974 Bricklin SV-1 Base 1974 International 100 Base 1974 International 100 Travelall 1974 International 200 Base 1974 International 200 Travelall 1974 Jeep Cherokee Base 1974 Jeep Cherokee S 1974 Jeep CJ5 Base 1974 Jeep CJ6 Base 1974 Jeep J10 Base 1974 Jeep J20 Base 1974 Jeep Wagoneer Base 1974 Jeep Wagoneer Custom 1975 American Motors Gremlin Base 1975 American Motors Hornet Base 1975 American Motors Hornet Sportabout 1975 American Motors Matador Base 1975 Jeep Cherokee Base 1975 Jeep Cherokee S 1975 Jeep CJ5 Base 1975 Jeep CJ5 Renegade 1975 Jeep CJ6 Base 1975 Jeep J10 Base 1975 Jeep J20 Base 1975 Jeep Wagoneer Base 1975 Jeep Wagoneer Custom 1976 American Motors Gremlin Custom 1976 American Motors Hornet Base 1976 American Motors Hornet Sportabout 1976 American Motors Matador Base 1976 Jeep Cherokee Base 1976 Jeep Cherokee S 1976 Jeep CJ5 Base 1976 Jeep CJ5 Renegade 1976 Jeep CJ7 Base 1976 Jeep CJ7 Renegade 1976 Jeep J10 Base 1976 Jeep J20 Base 1976 Jeep Wagoneer Base 1976 Jeep Wagoneer Custom 1977 American Motors Hornet AMX 1977 American Motors Hornet Base 1977 American Motors Hornet Sportabout 1977 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CJ5 Renegade 1979 Jeep CJ7 Base 1979 Jeep CJ7 Golden Eagle 1979 Jeep CJ7 Renegade 1979 Jeep J10 Base 1979 Jeep J20 Base 1979 Jeep Wagoneer Base 1979 Jeep Wagoneer Limited 1980 Jeep Cherokee Base 1980 Jeep Cherokee Wide Track 1980 Jeep CJ5 Base 1980 Jeep CJ5 Golden Eagle 1980 Jeep CJ5 Laredo 1980 Jeep CJ5 Renegade 1980 Jeep CJ7 Base 1980 Jeep CJ7 Golden Hawk 1980 Jeep CJ7 Laredo 1980 Jeep CJ7 Renegade 1980 Jeep J10 Base 1980 Jeep J20 Base 1980 Jeep Wagoneer Base 1980 Jeep Wagoneer Limited 1981 Jeep Cherokee Base 1981 Jeep Cherokee Chief 1981 Jeep CJ5 Base 1981 Jeep CJ5 Laredo 1981 Jeep CJ5 Renegade 1981 Jeep CJ7 Base 1981 Jeep CJ7 Laredo 1981 Jeep CJ7 Renegade 1981 Jeep J10 Base 1981 Jeep J20 Base 1981 Jeep Wagoneer Base 1981 Jeep Wagoneer Limited 1982 Jeep Cherokee Base 1982 Jeep Cherokee Chief 1982 Jeep J10 Base 1982 Jeep J20 Base 1982 Jeep Wagoneer Base 1982 Jeep Wagoneer Brougham 1982 Jeep Wagoneer Limited 1983 Jeep Cherokee Base 1983 Jeep Cherokee Pioneer 1983 Jeep Cherokee Wide Track Chief 1983 Jeep J10 Base 1983 Jeep J20 Base 1983 Jeep Wagoneer Brougham 1983 Jeep Wagoneer Limited 1984 Jeep Grand Wagoneer Base 1984 Jeep Grand Wagoneer Limited 1984 Jeep J10 Base 1984 Jeep J20 Base 1985 Jeep Grand Wagoneer Base 1985 Jeep Grand Wagoneer Limited 1985 Jeep J10 Base 1985 Jeep J20 Base 1986 Jeep Grand Wagoneer Base 1986 Jeep J10 Base 1986 Jeep J20 Base 1987 Jeep Grand Wagoneer Base 1987 Jeep J10 Base 1987 Jeep J20 Base 1988 Jeep Grand Wagoneer Base 1988 Jeep J10 Base 1988 Jeep J20 Base 1989 Jeep Grand Wagoneer Base 1990 Jeep Grand Wagoneer Base 1991 Jeep Grand Wagoneer Base