BBC Solid Roller Cam 47S 313R10

The BBC Solid Roller Cam 47S 313R10 by COMP CAMS represents a purpose-built, high-performance camshaft engineered specifically for big-block Chevrolet engines running solid roller lifter systems. This is the choice for serious street and competition builds where valve train reliability meets aggressive lift and duration specifications. Whether you're upgrading a vintage muscle car, a modern restomod, or a dedicated drag racing platform, this cam profile delivers the valve control and rpm range needed to maximize power output without sacrificing engine longevity or drivability.

Solid roller cams like the 47S 313R10 operate on a fundamentally different principle than flat-tappet designs—the roller design reduces friction and wear while permitting steeper ramp rates and higher valve velocities at full rpm. The 313 cubic-inch displacement designation and R10 suffix encode this cam's specific lift, duration, and lobe separation angle characteristics, optimized for BBC applications where cylinder head flow and induction efficiency demand precise valve timing. COMP CAMS manufactures this unit from premium cast iron with hardened lobes and precision grinding, ensuring consistent performance across thousands of engine cycles. The solid roller arrangement eliminates the flat-tappet's inherent deflection issues, enabling more aggressive profiles that would otherwise risk valve float or lifter failure.

Installation of the BBC Solid Roller Cam 47S 313R10 requires compatible solid roller lifter blocks, timing chain and sprockets, and proper degree-wheel verification during break-in to ensure optimal power band positioning. Builders working on big-block Chevy platforms—including 427, 454, and other displacement variants—will find this cam ideal for high-rpm applications where traditional flat-tappet geometries cannot deliver the precision needed for peak performance. This specification suits engine builders targeting 7000+ rpm capability, whether for bracket racing, street performance, or restoration projects demanding authentic performance enhancement.