King Engine Bearings MB5007SI0.5 Main Bearing Set Oversize - 0.50mm

The King Engine Bearings MB5007SI0.5 is a precision-engineered main bearing set designed for GMC and Saturn engines requiring 0.50mm (0.020") oversize bearings. This complete main bearing set provides the foundation for reliable crankshaft support during engine rebuilds and performance applications.

Construction & Material:

• Bi-metal construction with silicon aluminum alloy bearing surface
• Aluminum-based material strengthened with 2.5-3% silicon content
• Engineered for medium-load engines and nodular cast iron crankshafts
• Optimal balance of load capacity, conformability, and wear resistance

Key Features:

• 0.50mm (0.020") oversize for machined crankshafts
• Precision manufacturing for consistent tolerances
• Silicon strengthening improves fatigue resistance and durability
• Suitable for standard and moderate performance rebuilds

King Engine Bearings are manufactured to exacting standards, making them a trusted choice for professional engine builders and serious DIY mechanics. The bi-metal silicon aluminum composition provides excellent bearing properties for engines with nodular iron crankshafts while maintaining proper oil clearances throughout the engine's service life.