SBC Roller Camshaft 296AR-6

The COMP CAMS SBC Roller Camshaft 296AR-6 is a mechanical roller cam engineered for small block Chevy oval track engines demanding aggressive lift and extended duration across a broad RPM band. This camshaft delivers 0.630-inch lift on both intake and exhaust, with 296 degrees intake and 300 degrees exhaust duration, paired with a 106-degree lobe separation angle (LSA) that optimizes scavenging and cylinder fill for maximum track performance between 3,600 and 6,600 RPM.

Mechanical roller design reduces friction and allows precise valve timing without the complexity of hydraulic systems, critical for high-RPM oval track applications where consistency lap after lap is non-negotiable. The 106-degree LSA provides a balanced overlap window suited to mid-range torque production and efficient breathing across the engine's operating range. Dual lift values of 0.630 intake and exhaust ensure symmetrical valve motion, eliminating imbalance-related wear on valve train components and rocker geometry.

This camshaft is purpose-built for oval track racers running small block Chevy platforms—dirt, asphalt, or short-track competitors seeking a cam profile that balances aggressive mid-range power with RPM scalability. The 296/300 duration split and broad RPM range (3,600–6,600) accommodate both acceleration demand off corners and sustained power on straightaways. Installation requires proper valve train clearance validation and lifter preload adjustment to ensure the mechanical roller setup functions without binding or excessive lash.

When selecting a small block Chevy camshaft, the relationship between lift, duration, and LSA directly affects power delivery and fuel efficiency. The 296AR-6 profile positions itself in the aggressive segment of the spectrum—more cam than street builds but less extreme than all-out drag racing profiles. Proper installation with quality timing chain components and synchronized valve train geometry is essential to realizing this camshaft's designed performance and longevity.