COMP Cams 32-602-5 Big Mutha' Thumpr 242/257 Hydraulic Flat Cam for Ford 351C, 351M-400M for Select DeTomaso Pantera, Ford Bronco, Ford Country Sedan, Ford Country Squire, Ford Custom, Ford Custom 500, Ford E-250 Econoline, Ford E-250 Econoline Club
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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.
Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle.
Fits: 1971-1986 DeTomaso Pantera, 1978-1982 Ford Bronco, 1969-1974 Ford Country Sedan, 1969-1974 Ford Country Squire, 1969-1972 Ford Custom, 1969-1977 Ford Custom 500, 1980-1981 Ford E-250 Econoline, 1980-1981 Ford E-250 Econoline Club Wagon, 1980-1981 Ford E-350 Econoline, 1980-1981 Ford E-350 Econoline Club Wagon, 1975-1976 Ford Elite, 1977-1979 Ford F-100, 1977-1981 Ford F-150, 1977-1981 Ford F-250, 1977-1981 Ford F-350, 1969-1970 Ford Fairlane, 1970 Ford Falcon, 1969-1974 Ford Galaxie 500, 1972-1976 Ford Gran Torino, 1969-1986 Ford LTD, 1977-1979 Ford LTD II, 1969-1973 Ford Mustang, 1969-1974 Ford Ranch Wagon, 1969-1979 Ford Ranchero, 1977-1979 Ford Thunderbird, 1970-1976 Ford Torino, 1980 Lincoln Continental, 1980 Lincoln Mark VI, 1970-1974 Mercury Colony Park, 1969 Mercury Comet, 1970-1979 Mercury Cougar, 1969-1971 Mercury Cyclone, 1978-1986 Mercury Grand Marquis, 1970-1980 Mercury Marquis, 1969-1976 Mercury Montego, 1970-1974 Mercury Monterey
Please review Specifications and the detailed fitment table for notes and exceptions.