Xtreme Hyd. Roller Cam - SBC XR270HR-10

The Xtreme Hyd. Roller Cam - SBC XR270HR-10 from COMP CAMS is a hydraulic roller camshaft specifically designed for small block Chevy engines. It is ideal for street enthusiasts, bracket racers, and engine builders who desire a reliable and quiet valve train operation without the complexities associated with solid roller systems. This camshaft is perfect for various applications, including weekend cruisers, competition engines, and classic Chevy restorations.

The XR270HR-10 features a ground profile that optimizes valve lift and duration, balancing low-end torque with mid-range power delivery. Its hydraulic roller design combines the friction-reducing benefits of roller lifters with the automatic lash adjustment of hydraulic systems, eliminating the need for shim-and-bucket or adjustable rocker geometry. This design minimizes noise and wear on valvetrain components, ensuring consistent performance across a wide RPM band.

With COMP CAMS' precision manufacturing, the XR270HR-10 camshaft ensures tight tolerances on lobe geometry and journals, which are critical for consistent combustion events and reduced valve train stress. The roller bearing design on the lifter contact surface significantly reduces friction compared to flat-tappet designs, lowering parasitic drag and heat generation while extending the life of both the cam and lifters. This camshaft is compatible with small block Chevy engines running hydraulic roller lifters, making it a versatile choice for various performance applications.