COMP Cams Camshaft Kit CB XR280R-10

Starting with a solid roller camshaft profile like the XR280R-10 means you're building a serious street machine. This COMP Cams kit is designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements, and is intended for those who have already upgraded to a higher stall torque converter (2800+ RPM), a compression ratio of 10:1 or higher, and are running rear gears in the 3.73 to 3.90 range. This camshaft kit is a complete package, meant to give you the core components needed for a significant performance overhaul.

This kit includes the camshaft itself, a set of lifters, a timing chain set to ensure your valvetrain stays synchronized, and assembly lube to get everything installed smoothly. COMP Cams is well-known for its performance valvetrain components, and this Xtreme Energy series camshaft is built to handle the demands of a high-performance street application. The 242 degrees of intake duration and 248 degrees of exhaust duration at .050 lift, combined with a .571 intake and .590 exhaust lift, are aggressive specs that will change the character of your engine, giving it a strong pull through the mid-range and into the upper RPMs.

This kit is a solid option for street machines looking for a noticeable bump in power and torque, especially when paired with the supporting modifications mentioned. It’s important to note that this part is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's instructions for proper installation and break-in procedures to ensure optimal performance and longevity of your new valvetrain.