COMP Cams Camshaft CS 306S-10

COMP Cams is well-known for making performance engine parts, and their Magnum series camshafts are a popular choice for those looking to get more out of their Chevrolet Small Block Gen 1 engine. This particular camshaft, the CS 306S-10, is designed to give you noticeable performance improvements over your stock cam without causing excessive wear on your valve train parts. It's a solid flat tappet camshaft, meaning it's built for engines that use that style of valvetrain, and it's a great option for street/strip applications.

This Magnum grind works best when your engine has a static compression ratio of 9.5:1 or higher, and it pairs well with an aftermarket torque converter with a higher stall speed, typically 3500 RPM or more. You'll experience strong power delivery at higher RPMs, and it's engineered to work with mild ratio rocker arms and traditional performance valve springs. For best results, consider using it with low rear-end gears, headers, and an aftermarket intake manifold. Expect a noticeable, racy idle with this camshaft installed.

This camshaft fits a wide range of Chevrolet Gen 1 Small Block engines, including popular displacements like the 262, 283, 305, 327, 350, and 400. However, it's important to verify your specific engine setup, as it does not fit factory roller small blocks (typically 1985 and newer) or LS-based engines. If you're unsure whether your engine uses a flat tappet or roller camshaft, it's best to remove the intake or timing cover to check.