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.
This Part Fits:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1971-1974 | DeTomaso | Pantera | Base |
| 1981-1985 | DeTomaso | Pantera | GT5 |
| 1984-1986 | DeTomaso | Pantera | GT5-S |
| 1981 | DeTomaso | Pantera | GTS |
| 1978-1982 | Ford | Bronco | Custom |
| 1978 | Ford | Bronco | Northland |
| 1978-1981 | Ford | Bronco | Ranger XLT |
| 1982 | Ford | Bronco | XLS |
| 1982 | Ford | Bronco | XLT Lariat |
| 1969-1974 | Ford | Country Sedan | Base |
| 1969-1974 | Ford | Country Squire | Base |
| 1969-1972 | Ford | Custom | Base |
| 1969-1977 | Ford | Custom 500 | Base |
| 1975-1977 | Ford | Custom 500 | Ranch Wagon |
| 1980-1981 | Ford | E-250 Econoline | Base |
| 1980-1981 | Ford | E-250 Econoline | Chateau |
| 1980-1981 | Ford | E-250 Econoline | Custom |
| 1980-1981 | Ford | E-250 Econoline Club Wagon | Base |
| 1980-1981 | Ford | E-250 Econoline Club Wagon | Chateau |
| 1980-1981 | Ford | E-250 Econoline Club Wagon | Custom |
| 1980-1981 | Ford | E-350 Econoline | Base |
| 1980-1981 | Ford | E-350 Econoline | Chateau |
| 1980-1981 | Ford | E-350 Econoline | Custom |
| 1980-1981 | Ford | E-350 Econoline Club Wagon | Base |
| 1980-1981 | Ford | E-350 Econoline Club Wagon | Chateau |
| 1980-1981 | Ford | E-350 Econoline Club Wagon | Custom |
| 1975-1976 | Ford | Elite | Base |
| 1977-1978 | Ford | F-100 | Base |
| 1977-1979 | Ford | F-100 | Custom |
| 1977-1978 | Ford | F-100 | Northland |
| 1977-1979 | Ford | F-100 | Ranger |
| 1978-1979 | Ford | F-100 | Ranger Lariat |
| 1977-1979 | Ford | F-100 | Ranger XLT |
| 1977 | Ford | F-100 | XLT |
| 1977-1978 | Ford | F-150 | Base |
| 1977-1981 | Ford | F-150 | Custom |
| 1977-1978 | Ford | F-150 | Northland |
| 1977-1981 | Ford | F-150 | Ranger |
| 1978-1981 | Ford | F-150 | Ranger Lariat |
| 1977-1981 | Ford | F-150 | Ranger XLT |
| 1977 | Ford | F-150 | XLT |
| 1977-1978 | Ford | F-250 | Base |
| 1977-1981 | Ford | F-250 | Custom |
| 1977-1978 | Ford | F-250 | Northland |
| 1977-1981 | Ford | F-250 | Ranger |
| 1978-1981 | Ford | F-250 | Ranger Lariat |
| 1977-1981 | Ford | F-250 | Ranger XLT |
| 1977 | Ford | F-250 | XLT |
| 1977-1978 | Ford | F-350 | Base |
| 1977-1981 | Ford | F-350 | Custom |
| 1977-1978 | Ford | F-350 | Northland |
| 1977-1981 | Ford | F-350 | Ranger |
| 1978-1981 | Ford | F-350 | Ranger Lariat |
| 1977-1981 | Ford | F-350 | Ranger XLT |
| 1977 | Ford | F-350 | XLT |
| 1969-1970 | Ford | Fairlane | 500 |
| 1969 | Ford | Fairlane | Base |
| 1970 | Ford | Falcon | Base |
| 1970 | Ford | Falcon | Futura |
| 1969-1974 | Ford | Galaxie 500 | Base |
| 1969-1970 | Ford | Galaxie 500 | XL |
| 1972-1976 | Ford | Gran Torino | Base |
| 1973-1976 | Ford | Gran Torino | Brougham |
| 1974-1975 | Ford | Gran Torino | Elite |
| 1972-1975 | Ford | Gran Torino | Sport |
| 1972-1976 | Ford | Gran Torino | Squire |
| 1969-1978 | Ford | LTD | Base |
| 1970-1976 | Ford | LTD | Brougham |
| 1975-1978,1985-1986 | Ford | LTD | Country Squire |
| 1986 | Ford | LTD | Country Squire LX |
| 1985-1986 | Ford | LTD | Crown Victoria |
| 1986 | Ford | LTD | Crown Victoria LX |
| 1975-1978 | Ford | LTD | Landau |
| 1977-1979 | Ford | LTD II | Base |
| 1977-1978 | Ford | LTD II | Brougham |
| 1979 | Ford | LTD II | Landau |
| 1977-1979 | Ford | LTD II | S |
| 1977 | Ford | LTD II | Squire |
| 1969-1973 | Ford | Mustang | Base |
| 1971-1972 | Ford | Mustang | Boss 351 |
| 1970-1973 | Ford | Mustang | Grande |
| 1970-1973 | Ford | Mustang | Mach 1 |
| 1970 | Ford | Mustang | Shelby GT-350 |
| 1969-1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1969-1979 | Ford | Ranchero | 500 |
| 1969-1971 | Ford | Ranchero | Base |
| 1969-1979 | Ford | Ranchero | GT |
| 1970-1979 | Ford | Ranchero | Squire |
| 1972,1977-1979 | Ford | Thunderbird | Base |
| 1978 | Ford | Thunderbird | Diamond Jubilee |
| 1979 | Ford | Thunderbird | Heritage |
| 1978-1979 | Ford | Thunderbird | Town Landau |
| 1971 | Ford | Torino | 500 |
| 1970-1976 | Ford | Torino | Base |
| 1970-1971 | Ford | Torino | Brougham |
| 1971 | Ford | Torino | Cobra |
| 1970-1971 | Ford | Torino | GT |
| 1970-1971 | Ford | Torino | Squire |
| 1977-1979 | Lincoln | Continental | Base |
| 1977-1979 | Lincoln | Mark V | Base |
| 1970-1974 | Mercury | Colony Park | Base |
| 1969 | Mercury | Comet | Base |
| 1970-1973,1977-1979 | Mercury | Cougar | Base |
| 1977 | Mercury | Cougar | Brougham |
| 1977 | Mercury | Cougar | Villager |
| 1970-1979 | Mercury | Cougar | XR-7 |
| 1969-1971 | Mercury | Cyclone | Base |
| 1970-1971 | Mercury | Cyclone | GT |
| 1970-1971 | Mercury | Cyclone | Spoiler |
| 1975-1978,1980,1986 | Mercury | Grand Marquis | Base |
| 1980 | Mercury | Grand Marquis | Colony Park |
| 1986 | Mercury | Grand Marquis | LS |
| 1970-1978,1980 | Mercury | Marquis | Base |
| 1970-1978,1980 | Mercury | Marquis | Brougham |
| 1975-1976 | Mercury | Marquis | Colony Park |
| 1969-1976 | Mercury | Montego | Base |
| 1975 | Mercury | Montego | Brougham |
| 1972-1973 | Mercury | Montego | GT |
| 1969-1976 | Mercury | Montego | MX |
| 1970-1974,1976 | Mercury | Montego | MX Brougham |
| 1976 | Mercury | Montego | MX Villager |
| 1970-1975 | Mercury | Montego | Villager |
| 1970-1974 | Mercury | Monterey | Base |
| 1970-1974 | Mercury | Monterey | Custom |