Perfect Circle MS909P10 P-Series Main Bearing Set Undersize Small Block Chevy - 0.010

The Perfect Circle MS909P10 is a premium P-Series main bearing set designed for high-performance Small Block Chevrolet V8 engines. This set features 0.010 inch undersize bearings, making it ideal for crankshafts that have been machined for wear or damage.

Key Features:

• Tri-metal construction with steel backing, copper-lead intermediate layer, and lead-tin-copper overlay for superior durability
• Higher eccentricity and crush factor specifically engineered for high-load and high-RPM applications
• 1/2 groove design for enhanced oil distribution throughout the bearing surface
• Provides exceptional conformability, embedability, and fatigue resistance
• Includes complete main bearing set with thrust bearing

P-Series bearings are designed to compensate for the demanding conditions found in high-revving engines, offering performance characteristics that exceed standard bimetal bearings. The tri-metal construction provides a robust steel back for structural support, a copper-lead lining to handle extreme loads, and a specialized overlay on the bearing surface for optimal wear characteristics and lubrication properties.