SBC Shaft Rocker Arm Kit - 1.5/1.5 Ratio

The T&D Machine 2300-150/150 is a precision-engineered full roller shaft mount rocker arm kit designed specifically for Small Block Chevy (SBC) engine builds utilizing AFR 227cc or 235cc cylinder heads. These rocker arms feature a 1.50 ratio for both intake and exhaust, ensuring consistent valve lift and optimized valvetrain geometry in high-performance applications.

Constructed from high-strength aluminum with a natural finish, this kit provides increased stability and reduced friction compared to traditional stud-mount rocker systems. By mounting to a dedicated shaft, it eliminates rocker stud deflection, which is critical for maintaining accurate valve timing and lift at high RPMs.

Installation requires an engine configured with compatible AFR cylinder heads. It is a performance component intended for specialized engine builds and is not a direct replacement for stock vehicle components. Professional assembly and valvetrain geometry verification are highly recommended to ensure proper clearance and operation.

This kit is part-specific to the AFR 227cc and 235cc cylinder head architecture. Compatibility is determined by the cylinder head type rather than a specific vehicle make or model. As a performance component, it is designed for specialized racing or street/strip engine configurations.