Engineered for durability under extreme conditions, KPMI rocker arm bushings are manufactured from US mill-certified SAE 660 bearing bronze bar stock. This specific alloy was selected after rigorous testing and analysis of various bearing-bronze materials to ensure optimal anti-friction qualities, hardness, and resistance to deformation when subjected to high loads. The result is a component that meets stringent performance standards, providing reliable operation for high-stress rocker arm assemblies.
Precision manufacturing ensures these bushings are held to tight dimensional tolerances with an excellent surface finish, allowing them to machine well during installation. To facilitate a smooth fit, each bushing features a tapered lead on both ends, easing the installation process while maintaining the structural integrity required for consistent engine performance.