SBC 4&7 Swap C/T Solid Cam 47S 290XOS

The SBC 4&7 Swap C/T Solid Cam 47S 290XOS from COMP CAMS is a precision mechanical flat tappet camshaft designed specifically for small block Chevy oval track racing applications. This solid lifter camshaft is engineered to deliver aggressive valve timing and lift characteristics essential for competitive oval track engines operating within the 3400–7200 RPM range.

Featuring a 290-degree intake duration and 300-degree exhaust duration with a 106-degree lobe separation angle, this camshaft produces intake and exhaust lifts of 0.558 inches and 0.549 inches, respectively. The asymmetrical profile (290XOS designation) is optimized for low-to-mid RPM torque, which is critical for success in oval track racing. As a mechanical flat tappet design, it requires compatible lifters and precise valve lash adjustment, ensuring reliability and responsiveness in solid lifter racing engines.

This camshaft is ideal for small block Chevy oval track competitors looking for a bolt-in upgrade that combines proven COMP CAMS engineering with specifications tailored to the dynamics of short-track racing. Its design allows for maximum airflow and horsepower, making it a valuable addition to any competitive racing engine build.