King XP-Series Main Bearings Built with enhanced tri-metal, King XP-Series main bearings have a layer copper lead construction with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors—an amazing +/- .0001 in.! The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. King XP-Series main bearings deliver consistent and reliable performance with a high-load capacity, and the prognosis from the specialists is a long and happy life for your engine. When you need the best, you go to a specialist—and for the bearings demand—King Engine Bearings. They focus on one product—bearings—and nothing else. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine.
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