King Engine Bearings MB5013HP001 Main Bearing Set GM Vortec LS-Series Gen III/IV

The King Engine Bearings MB5013HP001 is a complete main bearing set engineered for GM Vortec and LS-Series Gen III and Gen IV engines. Part of King's HP (High Performance) Racing Line, these bearings are designed to meet the demanding requirements of high-output and performance-built engines where stock bearings fall short.

King's HP series bearings utilize advanced tri-metal construction with a proprietary pMaxBlack™ coating, a specially formulated polymer overlay that delivers superior wear resistance, enhanced oil film retention, and improved performance under high load and elevated temperatures. The reduced overlay thickness compared to standard bearings results in tighter tolerances and more precise fitment — critical for high-revving or forced-induction LS applications.

Key Features:

• HP Racing Line — engineered for high-performance and competition use
• Advanced tri-metal bearing construction for strength and durability
• pMaxBlack™ polymer coating for superior wear resistance and oil retention
• Designed for GM Vortec and LS-Series Gen III and Gen IV engines
• Tighter tolerances for improved oil clearance control
• Full main bearing set — includes all main bearings for the engine
• Compatible with both street performance and track/racing builds
• Manufactured to OEM dimensional standards for straightforward installation

Whether you're building a naturally aspirated LS street engine or a boosted competition powerplant, the King MB5013HP001 main bearing set provides the reliability and performance margin needed to protect your crankshaft investment. King Engine Bearings is a globally recognized manufacturer trusted by professional engine builders worldwide.