BBC Gen VI Xtreme Hyd. Roller Cam XR264HR-10

The BBC Gen VI Xtreme Hyd. Roller Cam XR264HR-10 from COMP Cams is designed for big-block Chevrolet engines that require aggressive yet streetable performance. This hydraulic roller camshaft caters to both enthusiasts and experienced engine builders who seek reliable valve actuation across a wider RPM range without the complications associated with solid-lifter setups.

Engineered with a roller profile, the XR264HR-10 minimizes friction and wear on lifters and pushrods compared to flat-tappet designs, enhancing component longevity in high-heat, high-load situations. The Xtreme series designation signifies a moderate to aggressive grind that is optimized for the cylinder head flow characteristics typical of modern Gen VI BBC castings. The 264 designation refers to its intake duration at 0.050-inch valve lift, ensuring effective performance.

This camshaft is particularly beneficial for builders of naturally aspirated engines running premium pump gasoline or race fuel, as it maintains stable combustion across throttle transitions. Its design allows for compatibility with stock-style hydraulic lifters, making it an excellent choice for restomods, classic muscle cars, and high-output street engines.