Clevite MS1497P20 P-Series Tri-Metal Main Bearing Set

The Clevite MS1497P20 is a high-performance P-Series main bearing set designed for demanding engine applications including motorsports, heavy-duty use, and street performance. As part of the Clevite 77 bearing family, the P-Series represents proven tri-metal construction engineered for high-revving engines that experience elevated loads and distortion.

Tri-Metal Construction:

• Hardened steel backing provides structural support and strength
• Cast copper-lead lining layer withstands extreme operational loads
• Electroplated babbitt overlay on running surface delivers superior conformability and embedability
• Lead-free aluminum silicon alloy composition for enhanced wear resistance

Performance Features:

• High crush factor ensures maximum bearing retention in the housing
• Increased eccentricity compensates for high-load factors and crankshaft distortion
• Reduced overlay thickness prevents overlay fatigue and hen tracking
• Full-groove oil distribution on most P-Series applications maximizes oil flow to bearings
• Narrow bearing contact patterns provide increased oiling to connecting rod bearings

Clevite P-Series main bearings offer an ideal combination of conformability, slipperiness, and fatigue resistance not typically found in original equipment or competitive bimetal bearings. This bearing set is suitable as an upgrade from bi-metal bearings due to its superior load capacity and durability. Since 1948, Clevite has been an industry leader in manufacturing precision engine bearings with track-proven performance in engines producing thousands of horsepower.