King Engine Bearings MB5116HP010 High Performance Main Bearing Set

The King Engine Bearings MB5116HP010 is a high-performance main bearing set designed specifically for Chrysler 426ci and 440ci V8 OHV engines. Part of King's HP Series, these bi-metal performance bearings feature an innovative aluminum silicon alloy structure that delivers exceptional durability for high-load racing applications.

HP Series Technology:

The HP Series was engineered for drag race and high-performance applications requiring a harder bearing material than traditional Babbitt overlays. These bearings provide superior resistance to overlay migration and extrusion while maintaining excellent embedability and compatibility with nodular cast iron crankshafts. Ideal for street, strip, and circle track racing applications.

Key Features:

• Bi-Metal Construction: Aluminum silicon alloy with fine micro-bore finish for optimal performance
• Bulls Eye Tolerance: Industry-leading wall thickness tolerances with all shells matched to 0.0001 inch
• 0.015 inch Top Layer: Provides superior macro particle embedability and conformability
• 40 Vickers Hardness: Resists overlay migration and extrusion under extreme loads
• 450°F Heat Threshold: Superior protection against friction and overheating
• 3/4 Groove Design: Main bearings feature 3/4 grooving for improved oil flow to rod journals
• Enlarged Chamfered Oil Holes: Enhanced lubrication delivery
• Medium Eccentricity: Optimizes load distribution and oil film formation
• Narrowed Design: Accommodates large-radius crankshafts

Ideal Applications:

• High-load, short-duration racing (drag racing, tractor pulls, monster trucks)
• Medium-load, long-duration racing with nodular cast iron crankshafts
• Performance engines experiencing Babbitt overlay extrusion or migration
• Applications with potential contaminants in the oil stream

King Engine Bearings are engineered to withstand the extreme loads and RPMs generated by today's most demanding competition engines, making the MB5116HP010 an excellent choice for serious Mopar performance builds.