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 |
|---|---|---|---|
| 1963 | Ford | 300 | Base |
| 1963-1972 | Ford | Country Sedan | Base |
| 1963-1974,1987-1991 | Ford | Country Squire | Base |
| 1987-1991 | Ford | Country Squire | LX |
| 1965-1972 | Ford | Custom | Base |
| 1964-1972 | Ford | Custom 500 | Base |
| 1963-1970 | Ford | Fairlane | 500 |
| 1966-1967 | Ford | Fairlane | 500XL |
| 1963-1969 | Ford | Fairlane | Base |
| 1978-1979 | Ford | Fairmont | Base |
| 1978-1979 | Ford | Fairmont | Futura |
| 1964-1970 | Ford | Falcon | Base |
| 1964-1970 | Ford | Falcon | Futura |
| 1964-1965 | Ford | Falcon | Futura Sprint |
| 1965 | Ford | Falcon Sedan Delivery | Base |
| 1963-1967 | Ford | Galaxie | Base |
| 1963-1972 | Ford | Galaxie 500 | Base |
| 1963 | Ford | Galaxie 500 | Sunliner |
| 1963 | Ford | Galaxie 500 | Victoria |
| 1963-1970 | Ford | Galaxie 500 | XL |
| 1972-1974 | Ford | Gran Torino | Base |
| 1973-1974 | Ford | Gran Torino | Brougham |
| 1974 | Ford | Gran Torino | Elite |
| 1972-1974 | Ford | Gran Torino | Sport |
| 1972-1974 | Ford | Gran Torino | Squire |
| 1975-1980 | Ford | Granada | Base |
| 1978-1980 | Ford | Granada | ESS |
| 1975-1980 | Ford | Granada | Ghia |
| 1966-1969 | Ford | GT40 | MK III |
| 1965-1972,1977-1982,1984-1985 | Ford | LTD | Base |
| 1970-1972,1984-1985 | Ford | LTD | Brougham |
| 1979-1986 | Ford | LTD | Country Squire |
| 1986 | Ford | LTD | Country Squire LX |
| 1980-1986 | Ford | LTD | Crown Victoria |
| 1986 | Ford | LTD | Crown Victoria LX |
| 1977-1979 | Ford | LTD | Landau |
| 1985 | Ford | LTD | LX Brougham |
| 1980-1982 | Ford | LTD | S |
| 1987-1991 | Ford | LTD Crown Victoria | Base |
| 1987-1991 | Ford | LTD Crown Victoria | LX |
| 1987-1991 | Ford | LTD Crown Victoria | S |
| 1977-1979 | Ford | LTD II | Base |
| 1977-1978 | Ford | LTD II | Brougham |
| 1979 | Ford | LTD II | Landau |
| 1977-1979 | Ford | LTD II | S |
| 1971-1977 | Ford | Maverick | Base |
| 1975-1977 | Ford | Maverick | Grabber |
| 1964-1973,1979 | Ford | Mustang | Base |
| 1969-1971 | Ford | Mustang | Boss 302 |
| 1979 | Ford | Mustang | Ghia |
| 1982 | Ford | Mustang | GL |
| 1982 | Ford | Mustang | GLX |
| 1970-1973 | Ford | Mustang | Grande |
| 1982-1995 | Ford | Mustang | GT |
| 1984 | Ford | Mustang | GT-350 20th Anniversary |
| 1995 | Ford | Mustang | GTS |
| 1982,1984 | Ford | Mustang | L |
| 1984-1993 | Ford | Mustang | LX |
| 1970-1973 | Ford | Mustang | Mach 1 |
| 1965-1968 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1993-1995 | Ford | Mustang | SVT Cobra |
| 1993 | Ford | Mustang | SVT Cobra R |
| 1975-1978 | Ford | Mustang II | Base |
| 1975-1978 | Ford | Mustang II | Ghia |
| 1975-1978 | Ford | Mustang II | Mach 1 |
| 1963-1972 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1977-1981,1983-1988,1991-1992 | Ford | Thunderbird | Base |
| 1978 | Ford | Thunderbird | Diamond Jubilee |
| 1984-1986 | Ford | Thunderbird | Elan |
| 1984-1985 | Ford | Thunderbird | Fila |
| 1979,1981,1983 | Ford | Thunderbird | Heritage |
| 1983-1988,1991-1993 | Ford | Thunderbird | LX |
| 1980 | Ford | Thunderbird | Silver Anniversary |
| 1983-1988 | Ford | Thunderbird | Sport |
| 1978-1981 | Ford | Thunderbird | Town Landau |
| 1971 | Ford | Torino | 500 |
| 1968-1974 | Ford | Torino | Base |
| 1970-1971 | Ford | Torino | Brougham |
| 1968-1971 | Ford | Torino | GT |
| 1969-1971 | Ford | Torino | Squire |
| 1980,1982-1987 | Lincoln | Continental | Base |
| 1982-1987 | Lincoln | Continental | Givenchy |
| 1982 | Lincoln | Continental | Signature |
| 1983-1985 | Lincoln | Continental | Valentino |
| 1980-1983 | Lincoln | Mark VI | Base |
| 1982-1983 | Lincoln | Mark VI | Bill Blass |
| 1982 | Lincoln | Mark VI | Givenchy |
| 1982-1983 | Lincoln | Mark VI | Pucci |
| 1982-1983 | Lincoln | Mark VI | Signature |
| 1984-1987 | Lincoln | Mark VII | Base |
| 1984-1992 | Lincoln | Mark VII | Bill Blass |
| 1984-1992 | Lincoln | Mark VII | LSC |
| 1984-1985 | Lincoln | Mark VII | Versace |
| 1981-1990 | Lincoln | Town Car | Base |
| 1982-1990 | Lincoln | Town Car | Cartier |
| 1990 | Lincoln | Town Car | Cypress |
| 1990 | Lincoln | Town Car | Executive |
| 1982-1990 | Lincoln | Town Car | Signature |
| 1989 | Lincoln | Town Car | Signature SE |
| 1990 | Lincoln | Town Car | Touring Edition |
| 1977-1980 | Lincoln | Versailles | Base |
| 1964-1967 | Mercury | Caliente | Base |
| 1986 | Mercury | Capri | 5.0 |
| 1979 | Mercury | Capri | Base |
| 1979 | Mercury | Capri | Ghia |
| 1982-1985 | Mercury | Capri | RS |
| 1987-1991 | Mercury | Colony Park | GS |
| 1987-1991 | Mercury | Colony Park | LS |
| 1964-1969,1971-1977 | Mercury | Comet | Base |
| 1967 | Mercury | Commuter | Base |
| 1967-1970,1977-1979,1983-1986 | Mercury | Cougar | Base |
| 1969 | Mercury | Cougar | Boss 302 |
| 1977 | Mercury | Cougar | Brougham |
| 1983-1988,1991-1992 | Mercury | Cougar | LS |
| 1967-1970,1977-1981,1987-1988,1991-1993 | Mercury | Cougar | XR-7 |
| 1964-1970 | Mercury | Cyclone | Base |
| 1969 | Mercury | Cyclone | CJ |
| 1970 | Mercury | Cyclone | GT |
| 1969-1970 | Mercury | Cyclone | Spoiler |
| 1979-1986 | Mercury | Grand Marquis | Base |
| 1979-1986 | Mercury | Grand Marquis | Colony Park |
| 1987-1991 | Mercury | Grand Marquis | GS |
| 1983-1991 | Mercury | Grand Marquis | LS |
| 1979-1982,1985 | Mercury | Marquis | Base |
| 1979-1982 | Mercury | Marquis | Brougham |
| 1975-1980 | Mercury | Monarch | Base |
| 1975-1977 | Mercury | Monarch | Ghia |
| 1976 | Mercury | Monarch | Grand Ghia |
| 1968-1974 | Mercury | Montego | Base |
| 1972-1973 | Mercury | Montego | GT |
| 1968-1974 | Mercury | Montego | MX |
| 1970-1974 | Mercury | Montego | MX Brougham |
| 1970-1974 | Mercury | Montego | Villager |
| 1964-1967 | Mercury | Villager | Base |
| 1966-1967 | Mercury | Voyager | Base |
| 1978-1979 | Mercury | Zephyr | Base |
| 1978-1979 | Mercury | Zephyr | Z7 |