Clevite MS-961P-10 High Performance Main Bearing Set

The Clevite MS-961P-10 is a high-performance main bearing set designed for racing and competition engines requiring maximum oil flow and superior bearing retention. This P-Series bearing set features full 360-degree grooving to maximize oil delivery to connecting rod bearings, making it ideal for high-RPM applications where rod bearing lubrication is critical.

Key Features:

• P-Series design with full grooved upper main shells for maximum oil flow to rod bearings
• High crush design for maximum bearing retention and stability
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Greater eccentricity helps narrow bearing contact patterns and improve oiling
• Tri-Metal construction combines strength and durability
• Hardened steel back for added strength and fretting resistance
• Non-plated finish for improved seating and bedding characteristics

Application Guidelines:

P-Series main bearing sets are recommended for engines experiencing rod bearing oil starvation, typically indicated by polished and smeared bearing surfaces with discoloration at the axial center. The full groove design prioritizes connecting rod lubrication over absolute main bearing film thickness, making this set ideal for engines where rod oiling is the limiting factor. These bearings work best in applications requiring higher eccentricity to control bearing contact patterns and ensure adequate lubrication reaches the connecting rod bearings under extreme conditions.

This bearing set represents Clevite's original high-performance bearing series, proven in demanding racing applications where maximum oil flow takes priority. The reduced overlay thickness and high crush design ensure these bearings maintain their position and integrity even under severe loads and high RPM operation.