COMP Cams Camshaft Kit CB XR280 R-10

This is the COMP Cams XR280 R-10 Solid Roller Cam Kit, part number K11-771-8. It's a comprehensive package designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements, originally equipped with flat tappet camshafts. If you're building a serious street machine and looking to significantly upgrade your engine's performance, this kit is engineered to meet those demands.

What makes this kit stand out is that it's a complete solution. You get the XR280 R-10 solid roller camshaft itself, which features a 242/248 degree intake/exhaust duration at .050 lift. This is paired with matching solid lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure a proper installation and optimal performance, the kit also includes a timing chain set, assembly lube, and detailed instructions. This is intended for applications with a 2800+ stall torque converter, 10:1 or higher compression, and rear gears in the 3.73 to 3.90 range, making it ideal for aggressive street use.

This kit is designed to fit a wide range of Chevrolet vehicles from the late 1960s through the late 1970s and early 1980s, including popular models like the Chevrolet Impala, Chevelle, and C10 Pickup. It's important to note that this camshaft kit is not CARB approved and cannot be shipped to California. Always refer to the included instructions for the most accurate installation procedures and recommendations for your specific build.