Xtreme Hyd. Roller Cam - SBC 4x4 X4280HR

The COMP CAMS Xtreme Hydraulic Roller Cam for small block Chevy (SBC) 4x4 engines delivers aggressive valve timing and lift designed for high-performance street and off-road applications. This hydraulic roller camshaft combines practical reliability with enhanced breathing characteristics, making it a proven choice for builders seeking increased power without sacrificing daily usability or cold-start reliability.

Specifications include 0.474-inch lift on both intake and exhaust, 280-degree intake duration and 284-degree exhaust duration, and a 111-degree lobe separation angle (LSA). The 1800 to 5800 RPM powerband targets mid-range torque production—critical for 4x4 trucks and off-road vehicles that demand responsive low-end power for load hauling and terrain traversal. The hydraulic roller design eliminates the wear patterns and maintenance demands of flat-tappet cams while providing the cost efficiency builders prefer over solid roller systems. This specification profile sits between stock cam aggression and extreme racing grinds, positioning it for applications where drivability and longevity matter alongside performance gains.

This cam suits small block Chevy engine builds targeting improved throttle response and mid-range power for trucks, 4x4 off-road rigs, and street performance platforms. The hydraulic roller design works with existing hydraulic lifters and requires no valvetrain conversion, reducing installation complexity and cost. Whether upgrading a tired factory powerplant or completing a mid-level performance build, this camshaft integrates seamlessly into traditional SBC platforms while delivering measurable improvements in responsiveness and output.