SBC Hydraulic Camshaft 305H-6

The SBC Hydraulic Camshaft 305H-6 from COMP CAMS is a precision-engineered performance upgrade designed for small-block Chevrolet engines seeking reliable hydraulic valve actuation with improved efficiency. Built for street and mild performance applications, this hydraulic camshaft serves builders and mechanics who demand consistent valve timing without the complexity of solid roller or mechanical systems. Whether you're refreshing a tired 305 or upgrading a budget-conscious build, the 305H-6 delivers the durability and predictable power curve that makes hydraulic cam profiles the industry standard for daily drivers and weekend cruisers.

This camshaft employs COMP CAMS' proven hydraulic roller or hydraulic flat-tappet design, utilizing precision-ground lobes and a hardened core to resist wear across thousands of miles and heat cycles. The hydraulic lifter design automatically maintains zero lash, eliminating the need for manual valve adjustment and reducing noise while improving component longevity. The 305H-6 profile balances intake and exhaust duration to optimize cylinder-filling efficiency while keeping peak RPM practical for stock or mildly modified cylinder heads, making it compatible with factory or aftermarket intake manifolds and carburetors common to SBC platforms.

Ideal for 305 cubic-inch small-block Chevrolet engines in trucks, muscle cars, and classic hot rods, the SBC Hydraulic Camshaft 305H-6 pairs seamlessly with hydraulic lifter-equipped blocks and standard roller timing chains. Installation requires no special tools beyond a degree wheel for proper valve timing verification, and the camshaft works with factory pushrods and rocker arms on most SBC configurations. Mechanics and enthusiasts appreciate this profile for its forgiving nature—it tolerates modest variations in setup while delivering repeatable power gains, making it an excellent choice for budget restorations or dependable street performance without the maintenance demands of solid lifter systems.