COMP Cams Camshaft Kit CB XR284H-R12

If you're looking to get more out of your Chevrolet Big Block engine, this COMP Cams Camshaft Kit is a solid choice. It's designed for the 396 to 454 cubic inch engines originally equipped with flat tappet camshafts, and it's a popular upgrade for jet boats, especially those running an A impeller. This kit is well-suited for pleasure cruising or mild performance applications, offering an improved powerband without being overly aggressive.

What makes this kit stand out is that it's a complete package, meaning you get everything you need to swap out your old valvetrain. Inside the box, you'll find the XR284H-R12 hydraulic roller camshaft itself, along with a set of lifters, valve springs, retainers, valve locks, and valve stem seals. COMP Cams also includes a timing chain set to ensure your engine's timing is spot on, plus assembly lube and decals to help with the installation. This comprehensive approach means you won't be scrambling to find individual components, making the installation process smoother.

This kit is a significant upgrade over stock, especially if your engine is still running its original flat tappet setup. The hydraulic roller design generally offers better durability and less friction than flat tappet systems, and the specific grind of the XR284H-R12 camshaft is chosen to provide a noticeable improvement in power and torque. It's a well-built package from a well-known brand in the performance engine world, intended to give your Big Block a bit more pep in its step for cruising or light performance use.