Perfect Circle CB831P20 Connecting Rod Bearing Undersize Ford - 0.020 351W

The Perfect Circle CB831P20 is a high-performance connecting rod bearing designed specifically for Ford 351W (5.8L) V8 engines from 1969-1997. This bearing features a 0.020 inch undersize specification for use with reground crankshafts during engine rebuilds and performance applications.

Advanced Tri-Metal Construction:

• Tri-Metal design provides superior load capacity compared to conventional bi-metal bearings
• Built on hardened steel backing with extra-thin overlays for durability
• Higher eccentricity and crush factor compensates for rod bore distortion in high-RPM applications
• TM-77 bearing material ensures longevity under demanding conditions

P-Series Performance Features:

• Engineered for high-revving engines where RPM causes connecting rod bores to narrow
• Ideal for heavy-duty, motorsports, and street performance rebuilds
• Lower sections include dowel holes for compatibility with aluminum connecting rods
• Designed to reduce friction and wear for smoother engine operation

Part of the legendary Clevite 77 performance bearing family, the P-Series is the most versatile replacement bearing suitable for most OE applications while providing a performance upgrade path. Perfect Circle bearings are trusted by engine builders for their precision fit, reliability, and proven performance in the most demanding applications. Sold individually.