COMP Cams Camshaft Kit CS XR286 R-10

When you're looking to build a serious street machine or weekend warrior with a Chevrolet Gen 1 Small Block, this COMP Cams Xtreme Energy XR286 R-10 Camshaft Kit is a comprehensive package. What you get in this kit is everything needed to get a solid roller camshaft installed: the camshaft itself, a full set of lifters, valve springs, retainers, valve locks, and valve stem seals. It also includes a timing chain set, assembly lube for flat tappet applications, and decals to show off your new setup. This kit is designed for engines like the 265, 283, 305, 327, 350, and 400 cubic inch engines, but it's important to verify if your specific engine from 1985 and newer has a factory roller setup or a flat tappet cam, as GM made a gradual switch. This kit is not compatible with LT1/LT4 or any LS-based engines.

The XR286 R-10 camshaft is a solid roller design, which means it can handle higher RPMs and more aggressive valve events compared to flat tappet cams. This particular grind is noted as being good in weekend warrior applications with a 3000+ RPM stall torque converter and requires a good intake and exhaust system along with low rear-end gears to really shine. The solid roller design requires more precise setup and maintenance than a hydraulic roller or flat tappet, but it offers a distinct performance advantage when properly installed and tuned. Remember to check your block for a factory roller setup or flat tappet cam before installation, especially on 1985 and newer engines, as this kit is intended for flat tappet blocks or those converted to solid roller.

This kit is a substantial upgrade for your Chevrolet Small Block, offering a significant performance bump for those looking to push their engine beyond stock capabilities. It's important to note that this part is not CARB approved and cannot be shipped to California. For optimal performance, ensure you have the supporting modifications like a high-flow intake and exhaust system, and consider your rear-end gear ratio to match the camshaft's powerband.