King Engine Bearings MB7776GPC0.25 BMW N52 N53 N55 Racing Main Bearing Set 0.25mm Oversize

The King Engine Bearings MB7776GPC0.25 is a premium racing main bearing set designed for BMW N52 B30A, N53 B30A, and N55 B30A engines. This 0.25mm oversize bearing set features King's advanced GPC (Gold Polymer Coated) tri-metal construction, engineered specifically for high-performance and racing applications.

GPC Race Technology:

• Silver-Based Tri-Metal Material: Capable of withstanding extreme loads up to 17,000 PSI, making it ideal for diesel performance and sprint car applications
• Polymer Coating Protection: Factory-applied coating safeguards bearings during oil starvation and metal-to-metal contact scenarios
• Silver Composite Overlay: Contains solid lubricant additives distributed throughout the silver matrix for superior protection under extreme conditions
• Lead-Free Construction: Environmentally sustainable design without compromising performance

Precision Engineering:

• Complete 7-pair main bearing set for BMW inline-6 engines
• 0.25mm (approximately 0.010") oversize for reground crankshafts
• Optimized crush height and eccentricity values from elasto-hydrodynamic analysis
• Industry-leading wall thickness tolerances for consistent performance
• Size clearly stamped on steel backing for easy identification

King Engine Bearings has specialized exclusively in engine bearings since 1960, applying decades of racing experience to create bearings that excel in the most demanding conditions. The GPC material combines advanced tri-metal structure with surface processes specifically engineered to handle extreme loads in high-performance builds.