King Engine Bearings XP Series Tri-Metal Racing Main

King Engine Bearings XP Series tri-metal racing main bearings are built for engines that see extreme loads and high RPM. Developed for performance and competition use, these crankshaft main bearings are designed for applications with forged steel aftermarket crankshafts that produce high loads for extended periods. The line suits circle track, off-road, offshore and other demanding race builds.

Key Features:

• Enhanced tri-metal construction: copper-lead layers with a nickel barrier over a steel backing.
• SecureBond adhesion process: improves stability between the layers for durability under heavy load.
• pMax Black technology: a nano-scale hardening process creates a fatigue-resistant overlay. King states the structure is 24% harder than conventional tri-metal race bearings.
• Higher load capacity: King states 15% to 30% greater load capacity than traditional bearings.
• Bull's Eye Tolerance: tightly controlled wall thickness for consistent oil clearances.
• XP geometry: advanced bearing geometry is engineered for high-load racing.

King Engine Bearings is a well-known name in racing engine bearings. The XP Series is a good choice for engine builders who want durable, precisely manufactured main bearings for a serious race build. Choose the child item that matches your engine application and the clearance or size needed for your crankshaft.