COMP Cams Camshaft Kit CB XR300HR-10

COMP Cams is well-known for making performance engine parts that help racers and enthusiasts get the most out of their vehicles. This Xtreme Energy camshaft kit, part number SK11-444-8, is built for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements that originally came with flat tappet camshafts. It's designed for pro street and bracket racing applications where you need a strong, reliable power band.

This kit includes the XR300HR-10 hydraulic roller camshaft, a set of lifters, a timing chain set, assembly lube, decals, and instructions, so you have the core components needed for the swap. The camshaft itself features a 248-degree intake and 254-degree exhaust duration at .050 lift, making it suitable for builds with 10:1 or higher compression ratios and a 3500+ stall speed torque converter. For best results, COMP Cams recommends pairing this with a good intake manifold and headers. This kit is intended for engines originally equipped with flat tappet camshafts, and the hydraulic roller design offers improved performance and durability over older flat tappet systems.

This kit fits a wide range of Chevrolet vehicles from the late 1960s through the mid-1990s, including popular models like the Chevrolet C10 Pickup, Chevrolet Impala, and Chevrolet Chevelle. It's important to note that this camshaft kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper setup and break-in procedures.