King CR807XPN XP-Series Connecting Rod Bearings Compatible with GM LS, SBC, and Gen III/IV Engines

Description

The New XP Racing Series Unique metal structure and advanced geometric design
for superior load capacity King’s new XP racing series is designed with improved
materials and geometric features to meet the ongoing demand for higher bearing load capacity.  King Racing’s XP series of rod and main bearings was developed to meet the challenges of racing through technologically advanced geometric features and a
unique metal structure. Together, they drive bearing technology to a new level of durability and performance.

King’s XP series incorporates a strengthened tri-metal structure called pMax Black™. This unique metal composition was developed to meet the ongoing demand for increased engine bearing load capacity.
• 24% greater load capacity
• 17% more fatigue resistance
• SecureBond™ – A micro-etch process that improves multi-layer adhesion and structural integrity
• Compatible with all crankshafts

1. Intermediate layer:
   • Copper-based alloy strengthened by 4.5% tin
   • Industry’s highest hardness level – 115HV
   • Load capacity – 17,000 PSI
   2. pMax-Black™ Overlay:
   • Strengthened by 5% copper
   • Industry’s highest hardness level – 18.1 HV
   • Fatigue resistance -10,200 PSI
   Breakthrough hardening technology
   King Racing’s new hardening technology modifies the overlay’s molecular structure and creates a fatigueresisting shield capable of carrying 24% more load.
   Note: overlay black appearance is a non-functional element. Color variations do not affect bearing performance.

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