MICHIGAN 77 CB684P Connecting Rod Bearing P-Series Standard Size Oldsmobile V8

The MICHIGAN 77 CB684P is a P-Series connecting rod bearing engineered for Oldsmobile V8 engines including 260, 307, 330, 350, and 403 cubic inch displacements. Part of the legendary Clevite 77 performance bearing family, this bearing is designed for demanding applications including heavy duty use, motorsports, and street performance builds.

Construction and Materials:

• Tri-Metal TM-77 construction with three-layer design capable of carrying maximum loads up to 12,000 psi
• Hardened steel backing provides exceptional strength and durability
• Copper-lead alloy intermediate layer for load capacity
• Electroplated babbitt metal overlay surface layer reduces friction and increases horsepower
• Extra-thin overlay optimized for performance applications

Performance Features:

• High eccentricity design accommodates rod bore distortion in high-RPM engines
• High crush factor ensures better seating and retention
• Suitable upgrade from bi-metal bearings due to increased load capacity
• Direct OE replacement suitable for most original equipment applications
• Standard size crankshaft specification

This versatile bearing combines the durability needed for stock rebuilds with the performance characteristics required for modified engines. The tri-metal construction reduces drag while providing the critical surface characteristics of conformability and embeddability essential for engine longevity.