COMP Cams Camshaft Kit CS XR270HR-12

When you're looking to get more out of your Small Block Chevy, this COMP Cams Camshaft Kit is a solid choice. This particular kit, the CS XR270HR-12XM, is designed for engines built from 1987 and later that originally came with a factory roller camshaft. It's a comprehensive package that includes the camshaft itself, a set of hydraulic roller lifters, a timing chain set, assembly lube, decals, and instructions, so you have most of what you need to get started on the job. This kit is well-suited for a wide range of vehicles, including models like the Chevrolet Camaro, Corvette, and C1500 Suburban, among many others from 1987 onwards.

The camshaft in this kit features a 218-degree intake duration and a 224-degree exhaust duration, with a 112-degree lobe separation angle. These specifications are chosen to provide a noticeable improvement in power and torque, especially in the mid-range, making it a popular upgrade for marine applications and performance street engines. The hydraulic roller design means less friction compared to flat tappet cams, contributing to better performance and longevity. COMP Cams is known for making well-built valvetrain components, and this kit reflects that reputation, offering a significant step up from stock.

Installing a camshaft kit like this is a job that requires careful attention to detail, especially when it comes to timing and lubrication. Make sure to follow the included instructions closely, and consider having a service manual for your specific vehicle handy. This kit is intended for use with OE roller camshaft-equipped engines and is not compatible with LT-1 or LS1 style engines.