Musclecar sound is back and nastier than ever with these Thumpr retrofit hydraulic roller cam and lifter kits from COMP Cams! These cams feature a thumping high performance idle and provide significant horsepower and torque increases. Specially engineered profiles are offered for each unique engine, providing the perfect combination of an early intake valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize your engine's nasty-idling characteristics without negatively impacting streetability. These kits include high-quality matched lifters for unbeatable performance, durability, and ease of installation.

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COMP Cams Cam/Lifters/Timing, Magnum, Solid Roller Cam, Advertised Duration 308/308, Lift 0.613/0.613, For Ford 221-302

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COMP Cams Cam/Lifters/Timing, High Energy, Hydraulic Flat Cam, Advertised Duration 260/260, Lift 0.447/0.447, For Ford 240-300 6 Cylinder

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COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Roller Advertised Duration 294 / 30

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COMP Cams Cam / Lifters / Valvetrain Nitrous Hydraulic Roller Cam Advertised Duration 282 / 294

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COMP Cams Cam/Lifters/Timing, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 294/306, Lift .554/.558, For Ford 351W

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COMP Cams Camshaft, Xtreme Energy, Hydraulic Flat, Advertised Duration 274/286, Lift .488/.491, For Pontiac 265-455, Each

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