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 Camshaft, Xtreme Energy, Solid Roller Cam, Advertised Duration 274/280, Lift .564/.57, For Chrysler 283-440, Each

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COMP Cams Cam/Lifters/Timing, Xtreme 4x4, Hydraulic Flat, Advertised Duration 278/288, Lift .574/.580, For Ford 429,460, Kit

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Crow Cams Camshaft, LS Cam, Adv. Duration 277/281, Valve Lift 0.580/0.584

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COMP Cams Camshaft, Xtreme Energy, Hydraulic Roller, Advertised Duration 264/270, Lift .510/.510, GM 8100/8.1L, Each

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COMP Cams Cam / Lifters / Valvetrain Xtreme Energy Hydraulic Roller Advertised Duration 270 / 27

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