These Xtreme Energy Hi-Lift camshafts from COMP Cams are designed to take advantage of the latest improvements in valvetrain components, and the newest developments in camshaft design. The aggressive lobe design of these cams produces better throttle response, and their high-lift design gives extra lift for top-end horsepower.

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COMP Cams Camshaft, Xtreme Energy, Hydraulic Flat Cam, Advertised Duration 256/268, Lift .447/.455, For Chrysler 283-440, Each

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COMP Cams Camshaft, Thumpr, Hydraulic Flat Cam, Advertised Duration 279/296, Lift 0.486/0.473, For Chrysler 283-440, Each

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