Clevite MS1386P20 P-Series Main Bearing Set Undersize - 020

The Clevite MS1386P20 is a P-Series main bearing set designed for high-performance and high-revving engine applications. This set features .020 inch (.020") crankshaft undersize bearings, making them ideal for engines with crankshafts that have been machined undersize during rebuilding or performance modifications.

Key Features:

• Tri-metal construction with cast copper-lead intermediate layer for maximum load-carrying capacity
• Hardened steel backing provides superior strength and support
• Electroplated babbitt overlay on running surface for excellent conformability and embedability
• High crush factor ensures better bearing retention and seating
• High eccentricity design compensates for bore distortion under high-load conditions
• Full or half-groove oil distribution for optimal lubrication
• .020" crankshaft undersize for machined crankshafts

Clevite P-Series bearings are the original members of the Clevite 77 bearing family and have been the choice of professional engine builders since 1948. These bearings deliver exceptional fatigue resistance and reduced friction, making them superior to standard bi-metal bearings. Sold as a complete set for one engine.