COMP Cams Cam & Lifter Kit CS XR264HR-1

COMP Cams is well-known for its performance camshafts and valvetrain components. This Xtreme Marine hydraulic roller camshaft and lifter kit, the XR264HR-1, is designed for Small Block Chevrolet engines that came with a factory roller camshaft. It's a popular choice for those looking to improve their engine's breathing and power output, especially in applications like marine use or performance street builds.

This kit includes the camshaft itself, a set of hydraulic roller lifters, assembly lube to ensure proper break-in, and decals. The camshaft features a 212 degrees of intake duration and 218 degrees of exhaust duration at .050 inch lift, with a lobe separation angle of 112 degrees. These specifications are chosen to provide a noticeable increase in power and torque, particularly in the mid-range, while still maintaining reasonable idle characteristics and drivability for a performance camshaft. The hydraulic roller design means less friction and more precise valve control compared to flat tappet systems.

This kit fits a wide range of 1987 and newer GEN 1 Small Block Chevrolet engines, including many Chevrolet and Buick models like the Camaro, Corvette, Caprice, and Roadmaster. It's important to note that this kit is not compatible with LT-1 or LS1 style engines, as they use different valvetrain designs. Ensure your engine is equipped with a factory roller camshaft before installation. The included assembly lube is crucial for the initial startup to properly seat the lifters and prevent premature wear.