COMP Cams Shaft Rocker SBC GM Bowtie 18 De

Starting with a strong 8620 hardened steel shaft, this COMP Cams rocker arm system is built for serious performance on your Chevrolet Small Block engine with 18 Degree Bowtie heads. The shaft-mount design is a significant upgrade over traditional stud-mounted rockers. It creates a much stiffer fulcrum point, which means better valve train stability and more consistent valve lift, especially at higher RPMs. This improved stability directly translates to more efficient power transfer from the camshaft to the valves, helping you unlock more horsepower.

The rocker arms themselves are crafted from durable 2024 aluminum, balancing strength with a lighter weight to reduce valvetrain stress. This kit features a 1.6 ratio for the intake and a 1.5 ratio for the exhaust, carefully chosen to optimize airflow and performance for your specific engine configuration. COMP Cams uses advanced computer technology in their design process and backs it up with real-world testing across all forms of racing, so you know these parts are built to perform under pressure.

This system is designed to be a direct fit for SBC engines equipped with 18 Degree Bowtie cylinder heads. By increasing the rigidity of the cylinder head and the entire valve train, you're not just adding parts; you're enhancing the overall efficiency and power potential of your engine. It's a well-built component that makes a noticeable difference when you're pushing your engine hard.