King Engine Bearings MB7723XP 001 XP-Series Tri-Metal Main Bearing Set Chrysler 215 245 265

The King Engine Bearings MB7723XP 001 is a high-performance XP-Series tri-metal main bearing set engineered for Chrysler 215ci, 245ci, and 265ci engines produced from 1970 to 1980. The "001" designation indicates these bearings are manufactured with an additional .001" of extra clearance per shell, making them ideal for engine rebuilds where slightly looser oil clearances are desired.

King's XP-Series bearings feature a multi-layer tri-metal construction consisting of a copper-lead alloy layer bonded over a steel backing, separated by a nickel plate barrier, and finished with a lead/tin/copper Babbitt overlay. This construction delivers outstanding load capacity, fatigue resistance, and conformability to crankshaft journals under high-stress operating conditions.

Key Features:

• XP-Series Tri-Metal Construction: Copper-lead alloy with nickel barrier and Babbitt overlay for superior strength and durability
• Extra Clearance: .001" additional clearance per shell for optimal oil film in performance and rebuilt engines
• Bull's Eye Wall Tolerances: Precision-controlled wall thickness held to an industry-leading +/- .0001" tolerance
• Steel-Backed Shell: Provides rigid support and consistent crush height for reliable bearing retention
• Race-Proven Technology: XP-Series design derived from King's motorsport engineering program
• Limited 1-Year Warranty: Backed by King Engine Bearings' manufacturer warranty

Founded in 1960, King Engine Bearings specializes exclusively in engine bearing design and manufacturing, bringing race-tested innovations to both performance and street engine rebuilds. This main bearing set is sold as a complete set for the Chrysler 215, 245, and 265 inline-six engine family.