King Engine Bearings MB556XPN010 Main Bearing Set for Chevrolet Big Block 396-502

The King Engine Bearings MB556XPN010 is a high-performance main bearing set engineered specifically for Chevrolet big block engines ranging from 396 to 502 cubic inches, covering Gen IV, V, and VI applications. These race-quality bearings feature King's advanced pMax Black coating, a proprietary polymer-based treatment that provides exceptional wear resistance and reduced friction during initial startup and high-load conditions.

Key Features:

• Tri-metal construction combining a steel backing, copper-lead intermediate layer, and performance overlay for superior strength and durability
• pMax Black coating technology for enhanced break-in protection and reduced friction
• 0.010" oversize for use with machined crankshafts or engines requiring increased bearing clearance
• Precision-manufactured to strict racing tolerances for consistent performance
• Compatible with Chevrolet big block Gen IV, V, and VI engines (396, 402, 427, 454, 496, 502 ci)
• Designed for high-performance street, strip, and racing applications

King Engine Bearings are trusted by professional engine builders worldwide for their quality construction and reliability under extreme conditions. This complete main bearing set includes all bearings necessary for a complete crankshaft installation. The tri-metal design provides excellent load capacity while the pMax Black coating ensures optimal lubrication during critical startup and high-stress operation.