Wrist Pin Bushing - BBC Pontiac

The Wrist Pin Bushing – BBC Pontiac (EAGB991-1) by EAGLE is a precision engine component engineered for big-block Pontiac platforms requiring reliable piston pin support. This bushing serves as the critical interface between the wrist pin and connecting rod, absorbing lateral loads and oscillating friction during combustion cycles. Engine builders and restoration specialists rely on OEM-specification bushings to maintain proper clearances, reduce noise, and prevent premature wear that compromises both power delivery and engine longevity.

Manufactured from bronze, the Wrist Pin Bushing – BBC Pontiac features a 0.988-inch inner diameter, 1.043-inch outer diameter, and 1.120-inch length in its natural finish. Bronze construction provides superior wear resistance and self-lubricating properties compared to ferrous alternatives, extending service intervals and maintaining dimensional stability under high heat and pressure. The tight tolerances ensure minimal radial play, critical for controlling piston motion and reducing side-loading forces that can accelerate ring wear and blow-by.

This bushing is essential for anyone rebuilding or refreshing a big-block Pontiac engine—whether for street performance, restoration, or competition use. Proper bushing replacement during a complete engine overhaul prevents connecting rod slap, maintains piston alignment, and safeguards against catastrophic bearing failure. Install the Wrist Pin Bushing – BBC Pontiac during initial assembly or as part of preventive maintenance to ensure your Pontiac engine delivers consistent power and reliability for thousands of miles.