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 Ford 221, 255, 260, 289 and 302 Small Block
Fits, Fitments
1963 Ford 300 Base
1963 Ford Country Sedan Base
1963 Ford Country Squire Base
1963 Ford Fairlane 500
1963 Ford Fairlane Base
1963 Ford Galaxie Base
1963 Ford Galaxie 500 Base
1963 Ford Galaxie 500 Sunliner
1963 Ford Galaxie 500 Victoria
1963 Ford Galaxie 500 XL
1963 Ford Ranch Wagon Base
1964 Ford Country Sedan Base
1964 Ford Country Squire Base
1964 Ford Custom 500 Base
1964 Ford Fairlane 500
1964 Ford Fairlane Base
1964 Ford Falcon Base
1964 Ford Falcon Futura
1964 Ford Falcon Futura Sprint
1964 Ford Galaxie Base
1964 Ford Galaxie 500 Base
1964 Ford Galaxie 500 XL
1964 Ford Mustang Base
1964 Ford Ranch Wagon Base
1964 Mercury Caliente Base
1964 Mercury Comet Base
1964 Mercury Cyclone Base
1964 Mercury Villager Base
1965 Ford Country Sedan Base
1965 Ford Country Squire Base
1965 Ford Custom Base
1965 Ford Custom 500 Base
1965 Ford Fairlane 500
1965 Ford Fairlane Base
1965 Ford Falcon Base
1965 Ford Falcon Futura
1965 Ford Falcon Futura Sprint
1965 Ford Falcon Sedan Delivery Base
1965 Ford Galaxie Base
1965 Ford Galaxie 500 Base
1965 Ford Galaxie 500 XL
1965 Ford LTD Base
1965 Ford Mustang Base
1965 Ford Mustang Shelby GT-350
1965 Ford Ranch Wagon Base
1965 Mercury Caliente Base
1965 Mercury Comet Base
1965 Mercury Cyclone Base
1965 Mercury Villager Base
1966 Ford Country Sedan Base
1966 Ford Country Squire Base
1966 Ford Custom Base
1966 Ford Custom 500 Base
1966 Ford Fairlane 500
1966 Ford Fairlane 500XL
1966 Ford Fairlane Base
1966 Ford Falcon Base
1966 Ford Falcon Futura
1966 Ford Galaxie Base
1966 Ford Galaxie 500 Base
1966 Ford Galaxie 500 XL
1966 Ford GT40 MK III
1966 Ford LTD Base
1966 Ford Mustang Base
1966 Ford Mustang Shelby GT-350
1966 Ford Mustang Shelby GT-350H
1966 Ford Ranch Wagon Base
1966 Mercury Caliente Base
1966 Mercury Comet Base
1966 Mercury Cyclone Base
1966 Mercury Villager Base
1966 Mercury Voyager Base
1967 Ford Country Sedan Base
1967 Ford Country Squire Base
1967 Ford Custom Base
1967 Ford Custom 500 Base
1967 Ford Fairlane 500
1967 Ford Fairlane 500XL
1967 Ford Fairlane Base
1967 Ford Falcon Base
1967 Ford Falcon Futura
1967 Ford Galaxie Base
1967 Ford Galaxie 500 Base
1967 Ford Galaxie 500 XL
1967 Ford GT40 MK III
1967 Ford LTD Base
1967 Ford Mustang Base
1967 Ford Mustang Shelby GT-350
1967 Ford Ranch Wagon Base
1967 Mercury Caliente Base
1967 Mercury Comet Base
1967 Mercury Commuter Base
1967 Mercury Cougar Base
1967 Mercury Cougar XR-7
1967 Mercury Cyclone Base
1967 Mercury Villager Base
1967 Mercury Voyager Base
1968 Ford Country Sedan Base
1968 Ford Country Squire Base
1968 Ford Custom Base
1968 Ford Custom 500 Base
1968 Ford Fairlane 500
1968 Ford Fairlane Base
1968 Ford Falcon Base
1968 Ford Falcon Futura
1968 Ford Galaxie 500 Base
1968 Ford Galaxie 500 XL
1968 Ford GT40 MK III
1968 Ford LTD Base
1968 Ford Mustang Base
1968 Ford Mustang Shelby GT-350
1968 Ford Ranch Wagon Base
1968 Ford Torino Base
1968 Ford Torino GT
1968 Mercury Comet Base
1968 Mercury Cougar Base
1968 Mercury Cougar XR-7
1968 Mercury Cyclone Base
1968 Mercury Montego Base
1968 Mercury Montego MX
1969 Ford Country Sedan Base
1969 Ford Country Squire Base
1969 Ford Custom Base
1969 Ford Custom 500 Base
1969 Ford Fairlane 500
1969 Ford Fairlane Base
1969 Ford Falcon Base
1969 Ford Falcon Futura
1969 Ford Galaxie 500 Base
1969 Ford Galaxie 500 XL
1969 Ford GT40 MK III
1969 Ford LTD Base
1969 Ford Mustang Base
1969 Ford Mustang Boss 302
1969 Ford Ranch Wagon Base
1969 Ford Torino Base
1969 Ford Torino GT
1969 Ford Torino Squire
1969 Mercury Comet Base
1969 Mercury Cougar Base
1969 Mercury Cougar Boss 302
1969 Mercury Cougar XR-7
1969 Mercury Cyclone Base
1969 Mercury Cyclone CJ
1969 Mercury Cyclone Spoiler
1969 Mercury Montego Base
1969 Mercury Montego MX
1970 Ford Country Sedan Base
1970 Ford Country Squire Base
1970 Ford Custom Base
1970 Ford Custom 500 Base
1970 Ford Fairlane 500
1970 Ford Falcon Base
1970 Ford Falcon Futura
1970 Ford Galaxie 500 Base
1970 Ford Galaxie 500 XL
1970 Ford LTD Base
1970 Ford LTD Brougham
1970 Ford Mustang Base
1970 Ford Mustang Boss 302
1970 Ford Mustang Grande
1970 Ford Mustang Mach 1
1970 Ford Ranch Wagon Base
1970 Ford Ranch Wagon Police Cruiser
1970 Ford Torino Base
1970 Ford Torino Brougham
1970 Ford Torino GT
1970 Ford Torino Squire
1970 Mercury Cougar Base
1970 Mercury Cougar XR-7
1970 Mercury Cyclone Base
1970 Mercury Cyclone GT
1970 Mercury Cyclone Spoiler
1970 Mercury Montego Base
1970 Mercury Montego MX
1970 Mercury Montego MX Brougham
1970 Mercury Montego Villager
1971 Ford Country Sedan Base
1971 Ford Country Squire Base
1971 Ford Custom Base
1971 Ford Custom 500 Base
1971 Ford Galaxie 500 Base
1971 Ford LTD Base
1971 Ford LTD Brougham
1971 Ford Maverick Base
1971 Ford Mustang Base
1971 Ford Mustang Boss 302
1971 Ford Mustang Grande
1971 Ford Mustang Mach 1
1971 Ford Ranch Wagon Base
1971 Ford Torino 500
1971 Ford Torino Base
1971 Ford Torino Brougham
1971 Ford Torino GT
1971 Ford Torino Squire
1971 Mercury Comet Base
1971 Mercury Montego Base
1971 Mercury Montego MX
1971 Mercury Montego MX Brougham
1971 Mercury Montego Villager
1972 Ford Country Sedan Base
1972 Ford Country Squire Base
1972 Ford Custom Base
1972 Ford Custom 500 Base
1972 Ford Galaxie 500 Base
1972 Ford Gran Torino Base
1972 Ford Gran Torino Sport
1972 Ford Gran Torino Squire
1972 Ford LTD Base
1972 Ford LTD Brougham
1972 Ford Maverick Base
1972 Ford Mustang Base
1972 Ford Mustang Grande
1972 Ford Mustang Mach 1
1972 Ford Ranch Wagon Base
1972 Ford Torino Base
1972 Mercury Comet Base
1972 Mercury Montego Base
1972 Mercury Montego GT
1972 Mercury Montego MX
1972 Mercury Montego MX Brougham
1972 Mercury Montego Villager
1973 Ford Country Squire Base
1973 Ford Gran Torino Base
1973 Ford Gran Torino Brougham
1973 Ford Gran Torino Sport
1973 Ford Gran Torino Squire
1973 Ford Maverick Base
1973 Ford Mustang Base
1973 Ford Mustang Grande
1973 Ford Mustang Mach 1
1973 Ford Torino Base
1973 Mercury Comet Base
1973 Mercury Montego Base
1973 Mercury Montego GT
1973 Mercury Montego MX
1973 Mercury Montego MX Brougham
1973 Mercury Montego Villager
1974 Ford Country Squire Base
1974 Ford Gran Torino Base
1974 Ford Gran Torino Brougham
1974 Ford Gran Torino Elite
1974 Ford Gran Torino Sport
1974 Ford Gran Torino Squire
1974 Ford Maverick Base
1974 Ford Torino Base
1974 Mercury Comet Base
1974 Mercury Montego Base
1974 Mercury Montego MX
1974 Mercury Montego MX Brougham
1974 Mercury Montego Villager
1975 Ford Granada Base
1975 Ford Granada Ghia
1975 Ford Maverick Base
1975 Ford Maverick Grabber
1975 Ford Mustang II Base
1975 Ford Mustang II Ghia
1975 Ford Mustang II Mach 1
1975 Mercury Comet Base
1975 Mercury Monarch Base
1975 Mercury Monarch Ghia
1976 Ford Granada Base
1976 Ford Granada Ghia
1976 Ford Maverick Base
1976 Ford Maverick Grabber
1976 Ford Mustang II Base
1976 Ford Mustang II Ghia
1976 Ford Mustang II Mach 1
1976 Mercury Comet Base
1976 Mercury Monarch Base
1976 Mercury Monarch Ghia
1976 Mercury Monarch Grand Ghia
1977 Ford Granada Base
1977 Ford Granada Ghia
1977 Ford LTD Base
1977 Ford LTD Landau
1977 Ford LTD II Base
1977 Ford LTD II Brougham
1977 Ford LTD II S
1977 Ford Maverick Base
1977 Ford Maverick Grabber
1977 Ford Mustang II Base
1977 Ford Mustang II Ghia
1977 Ford Mustang II Mach 1
1977 Ford Thunderbird Base
1977 Lincoln Versailles Base
1977 Mercury Comet Base
1977 Mercury Cougar Base
1977 Mercury Cougar Brougham
1977 Mercury Cougar XR-7
1977 Mercury Monarch Base
1977 Mercury Monarch Ghia
1978 Ford Fairmont Base
1978 Ford Fairmont Futura
1978 Ford Granada Base
1978 Ford Granada ESS
1978 Ford Granada Ghia
1978 Ford LTD Base
1978 Ford LTD Landau
1978 Ford LTD II Base
1978 Ford LTD II Brougham
1978 Ford LTD II S
1978 Ford Mustang II Base
1978 Ford Mustang II Ghia
1978 Ford Mustang II Mach 1
1978 Ford Thunderbird Base
1978 Ford Thunderbird Diamond Jubilee
1978 Ford Thunderbird Town Landau
1978 Lincoln Versailles Base
1978 Mercury Cougar Base
1978 Mercury Cougar XR-7
1978 Mercury Monarch Base
1978 Mercury Zephyr Base
1978 Mercury Zephyr Z7
1979 Ford Fairmont Base
1979 Ford Fairmont Futura
1979 Ford Granada Base
1979 Ford Granada ESS
1979 Ford Granada Ghia
1979 Ford LTD Base
1979 Ford LTD Country Squire
1979 Ford LTD Landau
1979 Ford LTD II Base
1979 Ford LTD II Landau
1979 Ford LTD II S
1979 Ford Mustang Base
1979 Ford Mustang Ghia
1979 Ford Thunderbird Base
1979 Ford Thunderbird Heritage
1979 Ford Thunderbird Town Landau
1979 Lincoln Versailles Base
1979 Mercury Capri Base
1979 Mercury Capri Ghia
1979 Mercury Cougar Base
1979 Mercury Cougar XR-7
1979 Mercury Grand Marquis Base
1979 Mercury Grand Marquis Colony Park
1979 Mercury Marquis Base
1979 Mercury Marquis Brougham
1979 Mercury Monarch Base
1979 Mercury Zephyr Base
1979 Mercury Zephyr Z7
1980 Ford Granada Base
1980 Ford Granada ESS
1980 Ford Granada Ghia
1980 Ford LTD Base
1980 Ford LTD Country Squire
1980 Ford LTD Crown Victoria
1980 Ford LTD S
1980 Ford Thunderbird Base
1980 Ford Thunderbird Silver Anniversary
1980 Ford Thunderbird Town Landau
1980 Lincoln Continental Base
1980 Lincoln Mark VI Base
1980 Lincoln Versailles Base
1980 Mercury Cougar XR-7
1980 Mercury Grand Marquis Base
1980 Mercury Grand Marquis Colony Park
1980 Mercury Marquis Base
1980 Mercury Marquis Brougham
1980 Mercury Monarch Base
1981 Ford LTD Base
1981 Ford LTD Country Squire
1981 Ford LTD Crown Victoria
1981 Ford LTD S
1981 Ford Thunderbird Base
1981 Ford Thunderbird Heritage
1981 Ford Thunderbird Town Landau
1981 Lincoln Mark VI Base
1981 Lincoln Town Car Base
1981 Mercury Cougar XR-7
1981 Mercury Grand Marquis Base
1981 Mercury Grand Marquis Colony Park
1981 Mercury Marquis Base
1981 Mercury Marquis Brougham
1982 Ford LTD Base
1982 Ford LTD Country Squire
1982 Ford LTD Crown Victoria
1982 Ford LTD S
1982 Ford Mustang GL
1982 Ford Mustang GLX
1982 Ford Mustang GT
1982 Ford Mustang L
1982 Lincoln Continental Base
1982 Lincoln Continental Givenchy
1982 Lincoln Continental Signature
1982 Lincoln Mark VI Base
1982 Lincoln Mark VI Bill Blass
1982 Lincoln Mark VI Givenchy
1982 Lincoln Mark VI Pucci
1982 Lincoln Mark VI Signature
1982 Lincoln Town Car Base
1982 Lincoln Town Car Cartier
1982 Lincoln Town Car Signature
1982 Mercury Capri RS
1982 Mercury Grand Marquis Base
1982 Mercury Grand Marquis Colony Park
1982 Mercury Marquis Base
1982 Mercury Marquis Brougham
1983 Ford LTD Country Squire
1983 Ford LTD Crown Victoria
1983 Ford Mustang GT
1983 Ford Thunderbird Base
1983 Ford Thunderbird Heritage
1983 Ford Thunderbird LX
1983 Ford Thunderbird Sport
1983 Lincoln Continental Base
1983 Lincoln Continental Givenchy
1983 Lincoln Continental Valentino
1983 Lincoln Mark VI Base
1983 Lincoln Mark VI Bill Blass
1983 Lincoln Mark VI Pucci
1983 Lincoln Mark VI Signature
1983 Lincoln Town Car Base
1983 Lincoln Town Car Cartier
1983 Lincoln Town Car Signature
1983 Mercury Capri RS
1983 Mercury Cougar Base
1983 Mercury Cougar LS
1983 Mercury Grand Marquis Base
1983 Mercury Grand Marquis Colony Park
1983 Mercury Grand Marquis LS
1984 Ford LTD Base
1984 Ford LTD Brougham
1984 Ford LTD Country Squire
1984 Ford LTD Crown Victoria
1984 Ford Mustang GT
1984 Ford Mustang GT-350 20th Anniversary
1984 Ford Mustang L
1984 Ford Mustang LX
1984 Ford Thunderbird Base
1984 Ford Thunderbird Elan
1984 Ford Thunderbird Fila
1984 Ford Thunderbird LX
1984 Ford Thunderbird Sport
1984 Lincoln Continental Base
1984 Lincoln Continental Givenchy
1984 Lincoln Continental Valentino
1984 Lincoln Mark VII Base
1984 Lincoln Mark VII Bill Blass
1984 Lincoln Mark VII LSC
1984 Lincoln Mark VII Versace
1984 Lincoln Town Car Base
1984 Lincoln Town Car Cartier
1984 Lincoln Town Car Signature
1984 Mercury Capri RS
1984 Mercury Cougar Base
1984 Mercury Cougar LS
1984 Mercury Grand Marquis Base
1984 Mercury Grand Marquis Colony Park
1984 Mercury Grand Marquis LS
1985 Ford LTD Base
1985 Ford LTD Brougham
1985 Ford LTD Country Squire
1985 Ford LTD Crown Victoria
1985 Ford LTD LX Brougham
1985 Ford Mustang GT
1985 Ford Mustang LX
1985 Ford Thunderbird Base
1985 Ford Thunderbird Elan
1985 Ford Thunderbird Fila
1985 Ford Thunderbird LX
1985 Ford Thunderbird Sport
1985 Lincoln Continental Base
1985 Lincoln Continental Givenchy
1985 Lincoln Continental Valentino
1985 Lincoln Mark VII Base
1985 Lincoln Mark VII Bill Blass
1985 Lincoln Mark VII LSC
1985 Lincoln Mark VII Versace
1985 Lincoln Town Car Base
1985 Lincoln Town Car Cartier
1985 Lincoln Town Car Signature
1985 Mercury Capri RS
1985 Mercury Cougar Base
1985 Mercury Cougar LS
1985 Mercury Grand Marquis Base
1985 Mercury Grand Marquis Colony Park
1985 Mercury Grand Marquis LS
1985 Mercury Marquis Base
1986 Ford LTD Country Squire
1986 Ford LTD Country Squire LX
1986 Ford LTD Crown Victoria
1986 Ford LTD Crown Victoria LX
1986 Ford Mustang GT
1986 Ford Mustang LX
1986 Ford Thunderbird Base
1986 Ford Thunderbird Elan
1986 Ford Thunderbird LX
1986 Ford Thunderbird Sport
1986 Lincoln Continental Base
1986 Lincoln Continental Givenchy
1986 Lincoln Mark VII Base
1986 Lincoln Mark VII Bill Blass
1986 Lincoln Mark VII LSC
1986 Lincoln Town Car Base
1986 Lincoln Town Car Cartier
1986 Lincoln Town Car Signature
1986 Mercury Capri 5.0
1986 Mercury Cougar Base
1986 Mercury Cougar LS
1986 Mercury Grand Marquis Base
1986 Mercury Grand Marquis Colony Park
1986 Mercury Grand Marquis LS
1987 Ford Country Squire Base
1987 Ford Country Squire LX
1987 Ford LTD Crown Victoria Base
1987 Ford LTD Crown Victoria LX
1987 Ford LTD Crown Victoria S
1987 Ford Mustang GT
1987 Ford Mustang LX
1987 Ford Thunderbird Base
1987 Ford Thunderbird LX
1987 Ford Thunderbird Sport
1987 Lincoln Continental Base
1987 Lincoln Continental Givenchy
1987 Lincoln Mark VII Base
1987 Lincoln Mark VII Bill Blass
1987 Lincoln Mark VII LSC
1987 Lincoln Town Car Base
1987 Lincoln Town Car Cartier
1987 Lincoln Town Car Signature
1987 Mercury Colony Park GS
1987 Mercury Colony Park LS
1987 Mercury Cougar LS
1987 Mercury Cougar XR-7
1987 Mercury Grand Marquis GS
1987 Mercury Grand Marquis LS
1988 Ford Country Squire Base
1988 Ford Country Squire LX
1988 Ford LTD Crown Victoria Base
1988 Ford LTD Crown Victoria LX
1988 Ford LTD Crown Victoria S
1988 Ford Mustang GT
1988 Ford Mustang LX
1988 Ford Thunderbird Base
1988 Ford Thunderbird LX
1988 Ford Thunderbird Sport
1988 Lincoln Mark VII Bill Blass
1988 Lincoln Mark VII LSC
1988 Lincoln Town Car Base
1988 Lincoln Town Car Cartier
1988 Lincoln Town Car Signature
1988 Mercury Colony Park GS
1988 Mercury Colony Park LS
1988 Mercury Cougar LS
1988 Mercury Cougar XR-7
1988 Mercury Grand Marquis GS
1988 Mercury Grand Marquis LS
1989 Ford Country Squire Base
1989 Ford Country Squire LX
1989 Ford LTD Crown Victoria Base
1989 Ford LTD Crown Victoria LX
1989 Ford LTD Crown Victoria S
1989 Ford Mustang GT
1989 Ford Mustang LX
1989 Lincoln Mark VII Bill Blass
1989 Lincoln Mark VII LSC
1989 Lincoln Town Car Base
1989 Lincoln Town Car Cartier
1989 Lincoln Town Car Signature
1989 Lincoln Town Car Signature SE
1989 Mercury Colony Park GS
1989 Mercury Colony Park LS
1989 Mercury Grand Marquis GS
1989 Mercury Grand Marquis LS
1990 Ford Country Squire Base
1990 Ford Country Squire LX
1990 Ford LTD Crown Victoria Base
1990 Ford LTD Crown Victoria LX
1990 Ford LTD Crown Victoria S
1990 Ford Mustang GT
1990 Ford Mustang LX
1990 Lincoln Mark VII Bill Blass
1990 Lincoln Mark VII LSC
1990 Lincoln Town Car Base
1990 Lincoln Town Car Cartier
1990 Lincoln Town Car Cypress
1990 Lincoln Town Car Executive
1990 Lincoln Town Car Signature
1990 Lincoln Town Car Touring Edition
1990 Mercury Colony Park GS
1990 Mercury Colony Park LS
1990 Mercury Grand Marquis GS
1990 Mercury Grand Marquis LS
1991 Ford Country Squire Base
1991 Ford Country Squire LX
1991 Ford LTD Crown Victoria Base
1991 Ford LTD Crown Victoria LX
1991 Ford LTD Crown Victoria S
1991 Ford Mustang GT
1991 Ford Mustang LX
1991 Ford Thunderbird Base
1991 Ford Thunderbird LX
1991 Lincoln Mark VII Bill Blass
1991 Lincoln Mark VII LSC
1991 Mercury Colony Park GS
1991 Mercury Colony Park LS
1991 Mercury Cougar LS
1991 Mercury Cougar XR-7
1991 Mercury Grand Marquis GS
1991 Mercury Grand Marquis LS
1992 Ford Mustang GT
1992 Ford Mustang LX
1992 Ford Thunderbird Base
1992 Ford Thunderbird LX
1992 Lincoln Mark VII Bill Blass
1992 Lincoln Mark VII LSC
1992 Mercury Cougar LS
1992 Mercury Cougar XR-7
1993 Ford Mustang GT
1993 Ford Mustang LX
1993 Ford Mustang SVT Cobra
1993 Ford Mustang SVT Cobra R
1993 Ford Thunderbird LX
1993 Mercury Cougar XR-7
1994 Ford Mustang GT
1994 Ford Mustang SVT Cobra
1995 Ford Mustang GT
1995 Ford Mustang GTS
1995 Ford Mustang SVT Cobra
