Clevite MS-960P-20 High Performance Main Bearing Set P-Series

The Clevite MS-960P-20 is a high-performance main bearing set designed for racing and competition engines. This P-Series bearing set features full groove design to maximize oil flow to connecting rod bearings, making it ideal for applications where rod bearing oil starvation is a concern.

P-Series Performance Features:

• High eccentricity design with maximum crush for superior bearing retention
• Full grooved upper shells for increased oil delivery to rod bearings
• Reduced overlay thickness to prevent overlay fatigue and "hen tracking"
• Hardened steel backing for added strength and fretting resistance
• TriMetal construction with lead-tin-copper overlay for excellent wear resistance

Optimal Applications:

• Engines experiencing severe rod bore close-in at extremely high RPM
• Applications requiring narrower bearing contact patterns
• Racing engines where rod bearing oil starvation has been identified
• Performance builds requiring maximum oil flow to connecting rods

P-Series bearings are engineered with greater eccentricity than standard performance bearings, which helps narrow bearing contact patterns and provides enhanced oiling to rod bearings. The high crush design ensures maximum bearing retention under severe racing conditions. These bearings utilize Clevite's legendary TriMetal construction, combining a hardened steel back with a copper-lead intermediate layer and a thin lead-tin-copper overlay for optimal strength and durability.

If you're experiencing rod bearing polishing, smearing, or discoloration concentrated at the bearing's axial center—typical signs of oil starvation—the MS-960P-20's full groove design delivers the increased oil flow needed to address these conditions.