Clevite CB-1631P-20 High Performance P-Series Rod Bearing Set

The Clevite CB-1631P-20 is a high-performance P-Series connecting rod bearing set designed for racing and high-RPM applications. Each set includes two bearing halves for one connecting rod, engineered to meet or exceed OEM standards while providing superior protection against friction and wear in demanding performance environments.

P-Series Performance Features:

• Maximum eccentricity design for severe rod bore close-in conditions at extremely high RPMs
• Hardened steel back construction for added strength and resistance to fretting
• High crush design ensures maximum retention in the rod bore
• Reduced overlay thickness prevents overlay fatigue and "hen tracking"
• TriMetal bearing construction with lead-tin-copper overlay for excellent durability
• .020" oversize for proper crankshaft clearance on machined journals

Technical Specifications:

The P-Series represents Clevite's original high-performance bearing line, specifically engineered for competition engines experiencing extreme loads and RPMs. The hardened steel backing provides exceptional strength, while the reduced overlay thickness delivers long-term durability under racing conditions. These bearings are ideal when parting line to parting line shaft contact indicates severe rod bore distortion.

Application Notes:

Use P-Series rod bearings where extremely high RPMs cause severe rod bore close-in, typically indicated by nearly full parting line to parting line shaft contact. The increased eccentricity helps maintain proper oil film thickness under extreme operating conditions. Compatible with both steel and aluminum connecting rods.

Important: This listing is for ONE rod bearing set (two bearing halves for one connecting rod). For a complete 6-cylinder engine, order quantity of 6. For an 8-cylinder engine, order quantity of 8.