SBC Shaft Rocker Arm Kit - 1.7/1.6 Ratio

The SBC Shaft Rocker Arm Kit - 1.7/1.6 Ratio is designed for small-block Chevrolet engine builders who require precise valve actuation control and enhanced lift geometry. This kit is ideal for performance and racing applications, ensuring maximum valve timing efficiency while maintaining reliability at high RPMs.

The shaft-mounted rocker arms in this kit distribute loads across a full-length steel shaft, significantly reducing flex compared to traditional individual pedestal rockers. The 1.7 intake lift ratio amplifies camshaft lift for optimal air-fuel charge ingestion, while the 1.6 exhaust lift ratio balances scavenging efficiency, preventing excessive valve overlap at high RPM.

Engine builders and shops often standardize on shaft rocker systems for competition engines, where consistent valve events are crucial for performance. This complete kit weighs 16.69 lbs and is ready for installation on compatible small-block Chevrolet platforms, making it a reliable choice for serious engine builders.