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 Xtreme Energy Hydraulic Flat Cam Advertised Duration 254 /

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COMP Cams Cam/Lifters/Timing, Magnum, Solid Roller Cam, Advertised Duration 288/288, Lift 0.55/0.55, For Chrysler 283-440

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