King Engine Bearings CR8028XP001 XP Series Tri-Metal Connecting Rod Bearing Set

The King Engine Bearings CR8028XP001 is part of King Racing's XP Series — a line of high-performance connecting rod bearings engineered for extreme-load, high-RPM competition applications. Developed specifically for engines using forged steel aftermarket crankshafts, the XP Series delivers superior load capacity and durability over extended racing sessions.

At the heart of the XP Series is pMax Black, King's proprietary tri-metal structure that is 24% harder than conventional tri-metal race bearings. Built on an enhanced copper-lead tri-metal construction with a nickel barrier and SecureBond adhesion process, these bearings are designed to handle the punishment of circle track, off-road, offshore, and other high-load, long-duration racing disciplines.

King XP Series Features:

• pMax Black Overlay: 0.0005" metallurgically enhanced and hardened performance overlay resists surface fatigue and withstands greater loads
• 15–30% Greater Load Capacity compared to traditional tri-metal bearings
• SecureBond Adhesion Process: Provides superior stability between the top and intermediate bearing layers to prevent delamination under extreme stress
• Bull's Eye Tolerance: Industry-leading wall tolerances with all shells matched to 0.0001" for precision fitment
• Increased Bearing Height: Improves bearing-to-bore contact and heat transfer while reducing spin potential at high RPM
• Medium Eccentricity: Optimizes load distribution and enhances oiling characteristics
• Narrowed Design: Compatible with large-radius crankshafts
• Dowel Hole Availability: Available with or without dowel holes to suit various engine configurations

Construction:

• Enhanced tri-metal copper-lead construction
• Nickel barrier layer for corrosion resistance and structural integrity
• SecureBond adhesion for layer stability
• Hardened pMax Black performance overlay

Intended Applications:

• High-load, long-duration racing (circle track, off-road, offshore, and similar)
• Performance engines equipped with forged steel aftermarket crankshafts
• Engines producing sustained high loads and elevated RPM

King Engine Bearings offers the industry's widest selection of sizes and special clearance options, ensuring the right fit for the most demanding performance and racing builds.