XP bearings are designed for dedicated track applications or street cars that may see extended circle track racing or endurance events. Formed from enhanced tri-metal copper lead construction, XP bearings utilize a nickel barrier fused with a SecureBond adhesion process. XP bearings feature a 15%-30% greater load capacity than traditional bearings and 0.0005" matallurgically enhanced and hardened performance overlay for extended fatigue resistance. XP main bearings are 1/2 grooved for uncompromised lower shell load capacity.
When doing rods and pistons, it's a good idea to replace the rod bearings as well. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components if the motor should move out of balance. King HP or XP rod bearings will prevent fatigue, failure, and reduce drivetrain stress.
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