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 / Valvetrain Magnum Hydraulic Roller Advertised Duration 260 / 260 Lift

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COMP Cams Cam / Lifters / Valvetrain Magnum Hydraulic Roller Advertised Duration 290 / 290 Lift

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COMP Cams Cam / Lifters / Valvetrain Magnum Hydraulic Roller Advertised Duration 270 / 270 Lift

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COMP Cams Camshaft, Magnum, Hydraulic Roller, Advertised Duration 270/276, Lift .500/.510, For Chevrolet 262/4.3L V6, Each

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COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller, Advertised Duration 252/258, Lift .472/.480, For Chevrolet Small Block, Each

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COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller Cam, Advertised Duration 292/300, Lift .549/.544, For Chrysler 273-360, Each

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