SBC Roller Camshaft CS-300AR-6

The SBC Roller Camshaft CS-300AR-6 from COMP CAMS is purpose-built for small-block Chevrolet engines seeking reliable high-RPM performance and increased valve lift. This roller camshaft is engineered for street and mild performance applications where dependable power delivery and reduced valve train wear matter. Whether you're rebuilding a 350 for consistent driveability or seeking an affordable upgrade over flat-tappet designs, the CS-300AR-6 delivers the mechanical advantage serious builders expect from COMP CAMS' catalog.

Roller cam technology replaces the sliding friction of flat-tappet designs with rolling contact between lifter and lobe, dramatically reducing parasitic losses and heat generation during extended use. The CS-300AR-6 features COMP CAMS' precision-ground lobes and hardened steel construction, ensuring longevity under sustained valve train stress. This roller design accommodates higher lift and aggressive timing profiles without the scuffing risk that flat-tappet cams face, making it an ideal choice for stock or lightly modified small-block Chevrolet platforms where durability and efficiency intersect.

Builders restoring 283, 302, 327, 350, or 400 cubic-inch small-block Chevrolets will find the SBC Roller Camshaft CS-300AR-6 compatible with standard hydraulic roller lifters and conventional pushrod valvetrain geometry. Installation requires proper valve clearance setup and quality rocker arm geometry to unlock full potential. The 8.26-pound component fits within standard engine bay dimensions, making it an accessible upgrade path for any SBC enthusiast looking to improve idle quality, reduce wear, and gain measurable power without extensive head or induction modifications.