COMP Cams Camshaft Kit CS XS290S-10

This is the COMP Cams Xtreme Energy Camshaft Kit, part number SK12-679-5, designed for Chevrolet Small Block Gen 1 engines. If you're building a pro street or bracket racing machine, this kit is a solid option for unlocking more power. It's specifically tuned with a 252-degree intake and 260-degree exhaust duration at .050 lift, giving you a noticeable bump in performance, especially when paired with good intake manifolds, headers, and appropriate gearing. This kit is intended for engines that use a flat tappet camshaft setup, so it's important to verify your block's configuration before installation.

The kit comes with everything you need to get started: the camshaft itself, a set of lifters, a complete timing chain set, assembly lube to ensure proper break-in, and decals. This comprehensive package means you won't be scrambling for essential components. COMP Cams is well-known for its performance camshafts, and this Xtreme Energy series is a popular choice for enthusiasts looking for improved throttle response and power gains in their classic Chevy V8s. Remember, for optimal performance with this camshaft, you'll want to ensure your engine has the supporting modifications like a performance intake, headers, and a torque converter with a stall speed of 3300 RPM or higher.

It's important to note that this camshaft kit is designed for specific Chevrolet Small Block Gen 1 engines and does not fit factory roller blocks from 1985 and newer, nor does it fit any LS-based engines. Always confirm your engine's camshaft type by removing the intake or timing cover. For 1955-1957 Chevrolet 265 engines, a specific oiling groove on the fifth cam journal is required; contact us if you have one of these early engines.