Ultra Rod Pin Bushing

The Ultra Rod Pin Bushing by CALLIES Performance is a precision-engineered component designed for serious engine builders and performance enthusiasts running high-horsepower stroker engines. This bushing serves as a critical wear surface within the connecting rod pin assembly, isolating the piston pin from direct metal-to-metal contact with the rod bore. It is ideal for anyone building a competition engine, performing a bottom-end refresh, or upgrading to forged internals on a street/strip platform.

CALLIES Performance manufactures this bushing to tight tolerances using premium bearing materials that reduce friction and distribute load evenly across the pin bore surface. The design allows controlled clearance between the piston pin and connecting rod, preventing galling and seizure during high-RPM operation where piston reversals and side loads are extreme. Precision fit ensures proper oil-film retention and eliminates rocking or movement that would accelerate wear on both the pin and rod bore.

This level of engineering is mandatory for high-performance applications, particularly those operating at sustained high RPM. The Ultra Rod Pin Bushing is compatible with CALLIES Performance connecting rods and most aftermarket stroker kits featuring modular or billet rod designs. Installation requires careful honing and sizing of the rod bore to match the bushing's interference fit specifications.