COMP Cams Cam & Lifter Kit CS XR294HR-1

This COMP Cams Cam & Lifter Kit, part number CL12-443-8, comes with the camshaft itself, a set of hydraulic roller lifters, assembly lube, decals, and installation instructions. It's designed for street/strip applications and is a popular choice for builders looking to significantly upgrade the performance of their Chevrolet Gen 1 Small Block engines. This kit is intended for engines with a 9.5:1 compression ratio, and works well with headers and an intake manifold, typically requiring a 3000+ stall torque converter and appropriate gearing to take full advantage of its capabilities. Expect a noticeable, rough idle characteristic of a performance camshaft.

The Xtreme Energy XR294HR-1 camshaft features a 242-degree intake and 248-degree exhaust duration at .050 inch lift, with .574 inches of lift on both the intake and exhaust. This hydraulic roller design offers improved valvetrain efficiency and durability compared to flat tappet systems. It's crucial to verify your engine's original configuration; this kit is for factory flat tappet blocks and will not fit factory roller blocks from 1985 and newer, nor will it fit any LS-based engines. Early 1955-1957 Chevrolet 265 engines may require an oiling groove on the fifth cam journal.

This kit is a substantial upgrade for performance builds. It's important to ensure your engine's supporting components, such as the fuel system, ignition, and cooling, are up to the task of handling the increased demands of a more aggressive camshaft profile. While it offers a rough idle for a distinct performance sound, it's important to note that this camshaft is not CARB approved and cannot be shipped to California.