Perfect Circle MS1041P10 Main Bearing Set AMC V8 .010" Undersize

The Perfect Circle MS1041P10 is a high-performance P-Series main bearing set designed for AMC V8 engines (290, 304, 343, 360, 390, and 401 cubic inch). This set features .010" undersize bearings with a 1/2 groove design and includes 5 main bearings for a complete crankshaft rebuild.

Key Features:

• Tri-metal construction with steel backing, copper-lead intermediate layer, and electroplated lead-tin-copper overlay
• Enhanced load capacity and superior fatigue resistance compared to bi-metal bearings
• Higher eccentricity and crush factor to compensate for high-load conditions and engine distortion
• Excellent conformability, embedability, and slipperiness for optimal performance
• 1/2 groove oil distribution design for proper connecting rod lubrication

Ideal for engine rebuilds where demanding use is anticipated, including heavy-duty applications, street performance, and motorsports. The P-Series design provides a versatile replacement suitable for most OE applications while offering enhanced durability for high-performance builds.