COMP Cams Camshaft CS 47S 312R-7

Starting with a 276-degree intake and 284-degree exhaust duration, this COMP Cams solid roller camshaft is built for serious performance in drag racing and oval track applications. It's specifically designed for Chevrolet Small Block Gen 1 engines, offering a 4-degree intake/exhaust valve event swap to help optimize cylinder filling and scavenging for maximum power output. This camshaft is a substantial upgrade for enthusiasts looking to push their engine's capabilities beyond stock, particularly in naturally aspirated setups where precise valve timing is critical.

This camshaft utilizes a solid roller lifter design, which allows for higher RPM limits and more aggressive lobe profiles compared to flat tappet cams. This means you can expect improved performance and responsiveness, especially at higher engine speeds. COMP Cams has engineered this part with a focus on durability and consistent performance under demanding conditions. It's important to note that this camshaft is intended for engines that do not have a factory roller camshaft setup; if your engine was built from 1985 onward, you'll need to verify if it has a flat tappet or factory roller system before installation. Early 1955-1957 models also require a specific oiling groove on the rear journal, so confirm your block's configuration.

This camshaft fits a wide range of Chevrolet Small Block Gen 1 engines, including popular displacements like the 350, 400, and 327. It's a popular choice for builds in vehicles such as the Chevrolet Camaro, Corvette, and C10 trucks. For optimal performance and longevity, ensure you have the correct valve springs, lifters, and pushrods to match the solid roller design. Always consult the manufacturer's installation instructions for detailed guidance on setup and break-in procedures.