COMP Cams Camshaft Kit CS 305H

If you're looking to build a Pro Street or bracket racing machine with a Chevrolet Small Block engine, the COMP Cams CS 305H Hydraulic Flat Cam Kit is a solid option. This kit is designed for limited street driving and pairs well with intake manifolds and gears, requiring a 3500+ stall torque converter to perform optimally. It's intended for builds with a 10.5:1 compression ratio and will give your engine a noticeable, racy idle.

This isn't just a camshaft; it's a complete K-Kit, meaning it includes everything you need for a comprehensive upgrade. You'll get the CS 305H camshaft itself, a set of hydraulic lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure proper timing, the kit also includes a timing chain set. For flat tappet applications, assembly lube is provided, along with decals and detailed instructions to guide you through the installation process. This kit is built for performance, aiming to change your engine's character for more aggressive use.

This kit fits a wide range of Chevrolet GEN 1 Small Block engines, including popular displacements like the 350, 400, 283, and 327. It's important to verify your engine uses a flat tappet camshaft, as many later models (from 1985 onward) transitioned to factory roller camshafts. You can confirm this by removing the intake manifold or timing cover. This kit is not compatible with LT1/LT4 engines or any LS-based engines. For 1955-1957 Chevrolet 265 engines, ensure the 5th cam journal has an oiling groove; contact COMP Cams for specific details if needed.