Clevite MS1681P10 Performance Main Bearing Set Undersize - 010

The Clevite MS1681P10 is a high-performance main bearing set from the legendary Clevite 77 P-Series line, engineered for engines requiring .010 inch crankshaft undersize bearings. Part of the oldest and most proven performance bearing family from Clevite, these bearings are designed for high-revving engines and demanding applications including motorsports, heavy-duty use, and street performance builds.

Advanced Tri-Metal Construction:

• Steel backing provides structural support and dimensional stability
• Cast copper-lead intermediate layer withstands extreme loads and operating stress
• Electroplated babbitt overlay on running surface delivers superior bearing qualities
• Tri-metal design offers increased load capacity over bi-metal bearings

Performance Features:

• Higher eccentricity narrows bearing contact patterns for improved oiling
• High crush factor ensures maximum bearing retention in the saddle
• Reduced overlay thickness prevents overlay fatigue (hen tracking)
• Full-groove design on most applications maximizes oil flow to connecting rod bearings
• .010 inch undersize accommodates crankshafts ground for wear or damage

Clevite bearings have powered every NASCAR champion since 1948 and are trusted by professional engine builders worldwide. The P-Series delivers an ideal balance of conformability, embedability, and fatigue resistance not found in standard OEM bearings, making them suitable for both stock rebuilds and high-performance applications.