Pontiac V8 Xtreme Hyd. Roller Cam XR288HR-10

The Pontiac V8 Xtreme Hyd. Roller Cam XR288HR-10 from COMP CAMS is a high-performance hydraulic roller camshaft engineered for street and strip applications in classic and modern Pontiac V8 engines. This camshaft delivers the aggressive valve timing required for enthusiasts seeking improved horsepower and torque without sacrificing streetability. Built for serious builders who demand reliability alongside performance, the XR288HR-10 combines proven COMP CAMS engineering with hydraulic roller technology that minimizes wear while maximizing efficiency.

This hydraulic roller camshaft features 0.520-inch intake and 0.540-inch exhaust lift specifications with a 288-degree intake and 294-degree exhaust duration, optimized around a 110-degree lobe separation angle for balanced performance across the 2200 to 6000 RPM operating range. The hydraulic roller design reduces friction and rocker arm wear while providing consistent valve actuation, making it ideal for engines running solid or hydraulic lifters. The precision-ground lobes ensure repeatable performance, and the roller design accommodates higher rpm operation without the valvetrain float that can plague flat-tappet designs.

The XR288HR-10 is purpose-built for Pontiac V8 platforms, making it an ideal choice for restomod projects, street performance builds, and vintage drag applications. Proper installation requires compatible lifters, pushrods, and rocker geometry verification; consult your engine builder or COMP CAMS installation guide for detailed specifications and setup procedures. This single-cam unit integrates seamlessly into stock or performance cylinder heads, delivering the Xtreme Energy line's reputation for durability and consistent power delivery across diverse driving conditions.