King Engine Bearings MB5013XP 030 XP-Series pMax Black Main Bearing Set GM Vortec LS Gen III/IV

The King Engine Bearings MB5013XP 030 is an XP-Series race main bearing set engineered for GM Vortec and LS-Series Gen III and Gen IV engines. This set is supplied in a 0.030" undersize dimension, designed for use with reground or undersized crankshafts during engine rebuilds.

pMax Black™ Tri-Metal Technology:

• Unique tri-metal structure — 24% harder than any other conventional tri-metal race bearing
• Overlay is strengthened by a proprietary nano-scaled hardening process that modifies the molecular structure and creates a black fatigue-resistant shield
• Lead bronze layered material with a nano-scaled hardening process of Babbitt overlay that withstands 10,200 PSI load
• Half-groove design for optimized oil distribution in high-performance applications

King Bull's Eye Tolerance™ Technology:

• Precision-manufactured to exacting tolerances for consistent oil clearance across every bearing in the set
• Sold as a complete engine main bearing set

Ideal Applications:

• Ideal for circle track, drag racing, off-shore, and other applications that utilize steel crankshafts
• Compatible with GM Vortec and LS-Series Gen III and Gen IV V8 engines

King Engine Bearings was founded in 1960 with one simple objective: to supply the highest quality bearings available in the marketplace, building an extensive product offering that includes engine bearings for automobiles, light duty and heavy duty trucks, marine, aviation, standby power, and many other types of internal combustion engines.