Clevite MS-1701P-20 High Performance Main Bearing Set P-Series

The Clevite MS-1701P-20 is a high-performance main bearing set from the renowned P-Series line, engineered specifically for racing and high-RPM performance engines. This premium bearing set features Clevite's legendary TriMetal construction with optimized grooving designed to maximize oil flow to connecting rod bearings while maintaining superior load capacity.

P-Series Performance Features:

• Full groove design in upper shells maximizes oil delivery to rod bearings
• High crush design ensures maximum bearing retention under extreme conditions
• Reduced overlay thickness prevents overlay fatigue and "hen tracking"
• Hardened steel backing provides exceptional strength and fretting resistance
• Increased eccentricity narrows bearing contact patterns for optimal performance
• Engineered for extreme RPM applications where severe rod bore close-in occurs

Advanced Bearing Technology:

Clevite's optimized 180-degree groove design in the upper main shell provides the best overall performance by maintaining thick oil film development while ensuring adequate oil supply to connecting rods. The ungrooved lower shells maximize load-carrying capacity and bearing life by allowing the crankshaft to develop a full hydrodynamic oil film, similar to how a tire hydroplanes on wet pavement.

Ideal Applications:

Use P-Series main bearings when you need higher eccentricity to narrow bearing contact patterns, increased oil flow to prevent rod bearing starvation, or when running extremely high RPMs. These bearings are perfect for competition engines experiencing severe dynamic loads and crankshaft deflection. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface for optimal performance.

The MS-1701P-20 bearing set is designed for engines where rod bearing oil starvation has been an issue, typically indicated by polishing, smearing, or discoloration concentrated at the bearing's axial center. The full-grooved design and high eccentricity work together to solve these critical oiling challenges in high-performance applications.