COMP Cams Camshaft Kit CS XM 256H-12

This is the COMP Cams Camshaft Kit CS XM 256H-12, designed for Chevrolet Small Block Gen 1 engines. It's a popular choice for those looking to improve the performance and economy of their engine, particularly in applications like pleasure boats, skiing, and general use. This kit includes the camshaft, lifters, a timing chain set, assembly lube, decals, and instructions, so you have the core components needed for the job.

The Xtreme Marine camshaft features a 212/218 degree duration with .485/.485 lift and is designed as a hydraulic flat tappet camshaft. This means it's a well-built option for engines that came factory-equipped with flat tappet lifters, offering a noticeable improvement in throttle response and overall power without sacrificing too much low-end torque or economy. It's important to confirm your engine uses a flat tappet setup, as many later model Small Blocks transitioned to roller lifters.

This kit is a solid option for a wide range of Chevrolet Small Block engines, including popular displacements like the 350, 305, and 400. While it's not CARB approved and cannot be shipped to California, it's a well-known upgrade for many classic Chevy applications. Always refer to the included instructions for proper installation and break-in procedures.