Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The COMP Cams XE-R camshaft kit for LS1 engines uses Xtreme Energy XE-R lobe designs to extend high‑RPM capability for street/strip use. The K-KIT contains camshaft, lifters, valve springs, retainers, valve locks, valve stem seals, timing chain set, assembly lube for flat tappet applications, decals and instructions. This profile requires custom tuning to match the engine and lobe characteristics.
COMP Cams Camshaft Kit LS1 XEr273HR-14
