COMP Cams Camshaft Kit CS XR300HR-10

When you're ready to step up the performance in your small block Chevrolet, this COMP Cams Xtreme Energy CS XR300HR-10 K-Kit is a complete package to get you there. This kit is designed for pro street and bracket racing applications, and it works best with engines featuring 10:1 or higher compression, a 3500+ stall torque converter, a good intake manifold, and headers. It's built for OE roller small block engines from 1987 and newer, excluding LT-1 and LS1 variants.

What you get in this K-Kit is everything you need to swap in a more aggressive camshaft profile. Inside the box, you'll find the camshaft itself, a set of hydraulic roller lifters, valve springs, retainers, valve locks, and valve stem seals. It also includes a timing chain set to ensure your valvetrain stays synchronized with the crankshaft. For flat tappet applications, assembly lube is included, along with decals and detailed instructions to guide you through the installation process. This kit is a well-built option for those looking to significantly improve their engine's breathing and power output.

This kit is intended for 305 to 350 cubic inch small block Chevys from 1987 and later that originally came with a factory roller camshaft. It's a popular choice for builds aiming for serious street performance or dedicated drag racing duty. Remember to check the manufacturer's instructions for specific installation details and any other components you might need to complete your build.