Clevite MS-2210P-.50MM Performance Main Bearing Set Undersize

The Clevite MS-2210P-.50MM is a high-performance main bearing set designed for demanding racing and competition engines. This P-Series bearing set features -.50MM undersize dimensions for use with reground crankshafts, providing precise fitment and optimal clearances in modified engine builds.

P-Series Performance Features:

• High crush design for maximum retention in performance applications
• Reduced overlay thickness to prevent overlay fatigue and hen tracking
• Full groove upper bearings to maximize oil flow to connecting rod bearings
• Maximum eccentricity design to narrow bearing contact patterns and improve oiling
• Hardened steel backing for added strength and fretting resistance
• Tri-metal construction for superior durability under extreme loads

When to Use P-Series Bearings:

P-Series main bearings are ideal for extreme high-RPM applications where rod bearing oil starvation is a concern. The full-grooved upper shells provide maximum oil delivery to connecting rod bearings, making these bearings the preferred choice when increased oil flow is needed. Use P-Series mains when you need higher eccentricity to achieve proper 2/3 to 3/4 bearing contact patterns, or when rod bearings show signs of oil starvation such as polishing, smearing, or discoloration at the axial center.

These bearings are engineered for racing and high-performance street applications where extreme RPM and cylinder pressures demand maximum bearing retention and oil flow capacity. The -.50MM undersize makes this set compatible with crankshafts that have been ground .50 millimeters undersize during rebuilding or performance preparation.