King Engine Bearings MB 509XP 010 Main Bearing Set Chevrolet 400 V8

The King Engine Bearings MB 509XP 010 is a high-performance main bearing set specifically engineered for Chevrolet 400 cubic inch V8 engines. This bearing set features King's advanced pMax Black coating technology, designed to deliver exceptional performance in racing and high-stress applications.

Key Features:

• Trimetal construction for superior strength and durability
• pMax Black proprietary coating reduces friction and increases wear resistance
• 0.010" oversize for engines with worn or machined crankshaft journals
• Race-grade performance specifications for demanding applications
• Precision-engineered to OEM tolerances with enhanced materials
• Complete main bearing set for all main journal positions

King's pMax Black coating technology provides a low-friction running surface that helps protect against scuffing during initial start-up and high-load conditions. The trimetal design combines a steel backing with a performance bearing alloy and overlay, offering the ideal balance of strength, conformability, and fatigue resistance for racing and performance street engines.