King Engine Bearings MB5013XP STDX Main Bearing Set GM LS Series Gen III IV

The King Engine Bearings MB5013XP STDX is a high-performance main bearing set engineered specifically for GM Vortec and LS-Series Gen III and Gen IV engines. These precision-manufactured main bearings are designed to meet the demanding requirements of both street and performance applications.

Key Features:

• Application-specific design for GM LS-Series Gen III and Gen IV engines
• XP (Xtreme Performance) series construction with enhanced load capacity
• Standard (STD) sizing for stock crankshaft journals
• Advanced tri-metal bearing material for superior wear resistance
• Precision tolerances ensure optimal oil clearances and reduced friction
• Compatible with both iron and aluminum block LS engines
• Suitable for high-performance street, strip, and forced induction applications

King Engine Bearings are manufactured using state-of-the-art processes and materials to deliver exceptional durability and reliability. The XP series features enhanced fatigue strength and embedability, making them ideal for engines operating under increased loads and higher RPM ranges. This complete main bearing set includes all bearings needed for a proper crankshaft installation.