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King High Performance Main Bearings: The Ultimate Choice for Race Engines

King Racing's MB5568XP Performance Main Bearing Set is engineered for the most demanding race engines. These high-performance bearings are designed to exceed the load capacity expectations of today's top competition engines, ensuring reliability and longevity even under extreme conditions. The XP series features advanced metallurgical and geometric technologies, making them the ideal choice for all performance applications that use forged steel aftermarket crankshafts.

Advanced Technology for Unmatched Performance

The MB5568XP bearings are crafted with pMax Black™, a unique tri-metal structure that is 24% harder than conventional tri-metal race bearings. This advanced material, combined with the XP geometric features, provides an ideal combination for performance racing. The SecureBond adhesion process ensures superior stability between the top and intermediate layers, while the metallurgically enhanced and hardened performance overlay withstands greater loads and resists surface fatigue. The main bearings are also 1/2 grooved for uncompromised lower shell load capacity.

Optimized for High-Load Racing Applications

These bearings are perfect for high-load, long-duration racing such as circle track, off-road, and off-shore racing, where steel crankshafts are required. The King Racing MB5568XP Performance Main Bearing Set offers a wide selection of sizes, including special clearance options, to fit your specific needs. With features like "Bull's Eye Tolerance" for precise wall tolerances, increased bearing height for improved heat transfer, and optimized oiling, these bearings are designed to provide maximum performance and durability. Whether you're a professional race engine builder or a weekend warrior, the MB5568XP is the perfect choice for your high-performance engine.