Sbc Cam&Lifter Kit 305H (Hyd Lifter #812-16)

The COMP Cams Camshaft and Lifter Kit 305H with hydraulic lifter #812-16 is a complete OEM-replacement valvetrain package engineered for Small Block Chevy engines demanding moderate lift and duration with street-friendly idle characteristics. This kit combines a precision-ground camshaft with a matched set of hydraulic flat-tappet lifters, eliminating compatibility guesswork and delivering consistent valve timing across the entire RPM band.

The 305H specification delivers 0.525 inches of lift on both intake and exhaust with 305 degrees of duration at 0.050-inch valve lift and a 110-degree lobe separation angle. This profile operates efficiently between 3,000 and 7,000 RPM, making it suitable for daily-driven vehicles and engines prioritizing driveability over extreme performance. Hydraulic flat-tappet designs automatically adjust for thermal expansion, eliminating the need for constant valve-clearance adjustment while minimizing wear on cam lobes and lifter faces through superior oil film maintenance.

This camshaft and lifter kit is built for Small Block Chevy engines requiring factory-style valve actuation without complex rocker-arm geometry modifications. Builders choosing the 305H typically prioritize engine longevity, smooth idle quality, and responsive low-to-mid-range torque over peak horsepower. The kit includes all necessary components for a complete installation, reducing the risk of mismatched parts during assembly and ensuring proper valve overlap and timing events from first start.

COMP Cams' reputation in the valvetrain market rests on consistent grind tolerances and quality control. Hydraulic lifter technology in this kit maintains oil pressure stability and reduces valve-train noise, a critical consideration for street applications where engine smoothness directly affects customer satisfaction and perceived reliability.