Clevite MS-697P Main Bearing Set - P-Series High Performance

The Clevite MS-697P is a P-Series high performance main bearing set designed for competition and high-RPM racing engines. This first series bearing set features full 360-degree grooving in the upper shells to maximize oil flow to connecting rod bearings, making it ideal for applications where rod bearing lubrication is critical.

P-Series Design Features:

• High eccentricity design to narrow bearing contact patterns and increase oil delivery to rod bearings
• Full groove configuration for maximum oil flow to connecting rods
• High crush for maximum bearing retention in the bore
• Reduced overlay thickness to prevent overlay fatigue and hen tracking
• TriMetal construction with hardened steel back for added strength and fretting resistance
• Non-flash plated bearing back for improved seating characteristics

Application Guidance:

P-Series main bearings are recommended for engines experiencing rod bearing oil starvation, typically indicated by polishing, smearing, or discoloration concentrated at the axial center of the rod bearings. The higher eccentricity design narrows bearing contact patterns while the full grooving ensures adequate oil supply reaches the connecting rods even under extreme conditions. These bearings are particularly well-suited for extremely high RPM applications where severe rod bore distortion causes close-in conditions.

Technical Specifications:

• Series: P-Series (First Series)
• Construction: TriMetal with lead-tin-copper overlay
• Grooving: Full 360-degree upper shell groove
• Chamfers: Enlarged for improved fillet clearance
• Back Material: Hardened steel for maximum strength

Clevite engine bearings are manufactured to OE specifications and are trusted by professional engine builders and racers worldwide for their durability and performance under extreme conditions.