COMP Cams Camshaft Kit CS X4 250H-11

This is the COMP Cams Xtreme 4x4 250H-11 Camshaft Kit, designed for Chevrolet Gen 1 Small Block engines. If you're looking to get more usable torque and better mileage out of your classic Chevy, this kit is a solid choice. It's built to provide a strong pull from lower RPMs and maintain a smooth idle, making it a popular option for trucks and street rods that need reliable power without sacrificing drivability. This kit fits a wide range of vehicles, including many Chevrolet C10 trucks, Caprice models, and Camaro/Corvette applications from the 1980s and early 1990s, as long as they use a flat tappet camshaft setup.

What sets this kit apart is that it's a complete package, meaning you get everything you need to swap out your old camshaft and related components. Inside the box, you'll find the camshaft itself, a set of lifters, valve springs, retainers, valve locks, and valve stem seals. It also includes a timing chain set to ensure your valvetrain is perfectly synchronized, plus assembly lube and decals. This comprehensive approach helps ensure a smooth installation and proper break-in for your new setup. The X4 250H-11 camshaft profile is specifically tuned for strong torque and improved fuel economy, with an extended description noting a smooth idle, which is often a challenge with performance camshafts.

It's important to verify your engine's camshaft type before ordering. This kit is for flat tappet engines and will not work with factory roller camshaft setups found in many 1985 and newer Small Blocks, nor will it fit any LS-based engines. If you're unsure, removing the intake manifold or timing cover is the best way to confirm. This kit is not CARB approved and cannot be shipped to California.