Bbc Cam&Lifter Kit 280H (Hyd Lifter #812-16)

The COMP Cams Big Block Chevy Camshaft and Hydraulic Lifter Kit (model CL11-208-3) is a complete cam and lifter package engineered for big-block Chevrolet engines requiring a street-performance or entry-level racing camshaft. This 280-degree duration hydraulic flat tappet kit delivers 0.520 inches of lift on both intake and exhaust lobes, with a 110-degree lobe separation angle optimized for broad powerband characteristics between 2,000 and 6,000 RPM.

The 280H duration specification indicates a moderate-duration profile suited to applications requiring good throttle response and street drivability without sacrificing performance. Hydraulic flat tappet lifters automatically adjust for clearance and valve train wear, eliminating the need for manual valve lash adjustment and making this kit accessible for builders seeking reliable, low-maintenance operation. The symmetric 0.520/0.520 lift across both intake and exhaust lobes ensures balanced flow characteristics and simplified tuning compared to asymmetric profiles.

This COMP Cams big-block Chevy cam kit suits engine builders and rebuilders working on big-block 427, 454, and similar displacement platforms where OEM or heavily worn camshafts require replacement. The hydraulic flat tappet design preserves stock-type valve train geometry, reducing the need for costly upgrades to lifter bores or pushrods. Whether restoring a classic big-block engine or building a performance street engine, this complete cam and lifter package provides the core component specification needed for reliable, dyno-tested performance.