Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
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.
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.
- 3 Grinds To Fit All Of Your Performance Needs
- Unique Design
- Maximizes Sound And Mid To High RPM Power
- Ensures Safe Piston-To-Valve Clearance
- Proven To Generate 25+ RWHP Gains
- Does Not Compromise Durability
- 1 Year Limited Warranty
Application Summary:
Year | Make/Model |
---|---|
1967-1974 | American Motors Ambassador |
1966-1968 | American Motors American |
1968-1970 | American Motors AMX |
1978-1979 | American Motors AMX |
1966 | American Motors Classic |
1978-1979 | American Motors Concord |
1972-1976 | American Motors Gremlin |
1970-1977 | American Motors Hornet |
1968-1974 | American Motors Javelin |
1967 | American Motors Marlin |
1971-1978 | American Motors Matador |
1978-1979 | American Motors Pacer |
1969 | American Motors Rambler |
1967-1968 | American Motors Rebel |
1970 | American Motors Rebel |
1966 | American Motors Rogue |
1979 | American Motors Spirit |
1974 | Bricklin SV-1 |
1974 | International 100 |
1974 | International 200 |
1974-1983 | Jeep Cherokee |
1971-1981 | Jeep CJ5 |
1971-1975 | Jeep CJ6 |
1976-1981 | Jeep CJ7 |
1972-1973 | Jeep Commando |
1984-1991 | Jeep Grand Wagoneer |
1971-1973 | Jeep J-100 |
1970-1973 | Jeep J-2500 |
1970-1973 | Jeep J-2600 |
1970-1971 | Jeep J-3800 |
1971-1973 | Jeep J-4500 |
1971-1973 | Jeep J-4600 |
1971-1973 | Jeep J-4700 |
1971-1973 | Jeep J-4800 |
1974-1988 | Jeep J10 |
1974-1988 | Jeep J20 |
1972-1983 | Jeep Wagoneer |