COMP Cams Camshaft CS XR264HR-12

This COMP Cams Xtreme Energy camshaft features a 212 degrees of intake duration and 218 degrees of exhaust duration at .050 inch lift, with a 112-degree lobe separation angle. This specific lobe profile is designed to work well with computer-controlled engines, offering an improved powerband for your OE Roller Small Block Chevrolet 305 or 350 cubic inch engine. It’s a solid choice if you’re looking to get more out of your engine without needing to change out your factory roller valvetrain components.

The XR264HR-12 is built with a hydraulic roller design, which reduces friction compared to flat tappet cams, allowing for more aggressive lobe profiles and better performance. This camshaft is intended for use in engines originally equipped with a factory roller camshaft, such as those found in many Chevrolet and Buick vehicles from the late 80s and 90s. It’s important to note that this camshaft is not LT-1, LS1, or other specific engine families, but rather the common OE roller setups found in many trucks, cars, and commercial chassis vehicles.

When installing this camshaft, ensure you are using compatible valve springs, pushrods, and lifters. While it’s designed to work with factory roller components, upgrading these parts can help ensure optimal performance and longevity. This camshaft fits a wide range of vehicles, including models like the Chevrolet Camaro, Buick Roadmaster, and Chevrolet C1500 Suburban, among many others from 1987 onwards. Always refer to the manufacturer's installation instructions for specific details regarding valvetrain setup and break-in procedures.