COMP Cams Camshaft Kit CS XM 270H-12

If you're looking to get more out of your Chevrolet Small Block Gen 1 engine, especially in a marine application like a jet boat, this COMP Cams Xtreme Marine camshaft kit is a solid option. It's designed to give you a strong mid-range pull and improved throttle response, all while giving you a noticeable idle that lets you know the engine is working.

This kit includes the camshaft itself, a set of lifters, a timing chain set, assembly lube, decals, and instructions, so you have the core components needed for the swap. The camshaft specs, with a 226/236 duration at .050 lift, are tuned for that strong mid-range performance and good throttle response without sacrificing too much low-end torque. It's a well-built kit that's popular for these types of engine builds.

Keep in mind that this kit fits a wide range of Chevrolet Small Block Gen 1 engines, but it's crucial to verify your specific block. It does not fit LT1/LT4 engines or factory roller small blocks from 1985 and newer, as GM gradually transitioned to roller cams. You may need to remove the intake or timing cover to confirm if your block uses a flat tappet or roller setup. This kit is not CARB approved and cannot be shipped to California.