SBC Shaft Rocker Arm Kit w/Dart 13 degree Heads

The SBC Shaft Rocker Arm Kit w/Dart 13 degree Heads is an essential valvetrain component designed for small-block Chevrolet engines utilizing Dart's 13-degree cylinder head casting. This kit is tailored to ensure precise rocker arm geometry and lift ratios when upgrading from stock or cast iron heads to aluminum Dart heads, which is crucial for optimal valve actuation.

Engineered for performance, T and D Machine shaft rocker arms provide enhanced rigidity and load distribution compared to traditional stud-mounted designs. The solid steel shaft supports the entire rocker assembly, minimizing deflection under high valve spring pressures and ensuring reliable valve control across a wide RPM range.

Builders working with Dart 13-degree heads will find this rocker arm kit beneficial for various applications, including dedicated race engines and high-performance street machines. Its robust design is capable of handling aggressive cam profiles and elevated spring tensions, making it a reliable choice for serious engine builders.