COMP Cams Camshaft Kit CS XR270HR-12

If you're looking to get more out of your 1987 and newer Chevrolet small block engine with a factory roller camshaft, this COMP Cams CS XR270HR-12 kit is designed to help you achieve that. This kit is built around the XR270HR-12 camshaft, which is part of COMP Cams' Xtreme Marine line, meaning it's engineered for robust performance and durability. It's a popular choice for those rebuilding or upgrading engines found in a wide range of vehicles, from classic Camaros and Corvettes to C/K series trucks and Caprice sedans.

This isn't just a camshaft; it's a complete K-Kit, meaning it includes everything you need to get the job done right. You'll find the camshaft itself, hydraulic roller lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure proper installation and break-in, the kit also comes with a timing chain set, assembly lube, and detailed instructions. This comprehensive approach means you won't be scrambling to find compatible parts, and it helps ensure the entire valvetrain works together harmoniously for improved performance and reliability.

The XR270HR-12 camshaft features a 218-degree intake and 224-degree exhaust duration at .050-inch lift, with a .495-inch intake and .502-inch exhaust lift. These specifications are chosen to provide a noticeable increase in power and torque, especially in the mid-range, while still maintaining reasonable idle characteristics for a performance camshaft. It's a solid option for street-driven vehicles that see occasional track use or for marine applications where consistent power delivery is crucial. Remember to consult the included instructions for the best installation practices and break-in procedures to maximize the life and performance of your new valvetrain components.