COMP Cams Camshaft FW XR276Rf-HR10

This is the COMP Cams Xtreme Energy XR276Rf-HR10 hydraulic roller camshaft, specifically designed for Ford 351 Windsor engines that originally came with the "Windsor" firing order. If you're building a street machine and looking for a noticeable boost in mid-range power, this camshaft is a solid option. It's engineered to work well with vehicles running 3.55 or numerically higher rear-end gears and a torque converter rated for 2200 RPM or more, which helps you take full advantage of its performance characteristics.

The Xtreme Energy series is well-known for providing an improved powerband that's still manageable for daily driving, and this particular grind, the XR276Rf-HR10, features a 224-degree intake duration and 230-degree exhaust duration at .050 inch lift. This profile is designed to really wake up the engine in the crucial mid-range, making it feel much more responsive when you're accelerating from a cruising speed or navigating city traffic. Being a hydraulic roller camshaft, it offers reduced friction compared to flat tappet designs, which can lead to better performance and longevity.

When installing this camshaft, remember that it's intended for engines with the older, "Old" firing order for Ford Small Blocks, or the specific "Windsor" firing order for 351W applications. It's important to verify your engine's firing order before installation to ensure proper operation. Also, please note that this camshaft is not CARB approved and cannot be shipped to California. For optimal performance and to ensure proper operation, it's recommended to consult the manufacturer's installation instructions and consider pairing it with upgraded valve springs and pushrods suitable for a hydraulic roller setup.