COMP Cams Cam & Lifter Kit CB XR258HR-1

This COMP Cams XR258HR-1 hydraulic roller camshaft and lifter kit is built around a camshaft featuring 206 degrees of intake duration and 212 degrees of exhaust duration at .050 inch lift. This specific lift profile is designed to work with Chevrolet Big Block engines originally equipped with flat tappet camshafts, such as the 396, 427, and 454 cubic inch V8s. By upgrading to a hydraulic roller setup, you're moving to a more efficient valvetrain that reduces friction and wear compared to traditional flat tappet designs.

The kit includes the camshaft, a set of hydraulic roller lifters, assembly lube to ensure proper break-in, and decals for your engine bay. This is a significant upgrade for anyone looking to improve their engine's performance and reliability. The hydraulic roller design allows for more aggressive cam profiles while maintaining street-friendly characteristics, offering a noticeable improvement in power and torque across the RPM range. It’s a well-built package designed for enthusiasts seeking a substantial performance gain from their Big Block Chevrolet.

This kit is intended for a wide range of Chevrolet vehicles from the late 1960s through the 1990s, including popular models like the Chevelle, Camaro, Corvette, Impala, and C10 pickups. Ensure your engine was originally equipped with a flat tappet camshaft before installation, as this kit is designed to replace that system with a modern hydraulic roller setup. Always refer to the included instructions for proper installation and break-in procedures.