King Engine Bearings CR 808XPN010X XP pMax Black Connecting Rod Bearing Set Big Block Chevy 369-502 Gen IV/V/VI 0.010 Under

The King Engine Bearings CR 808XPN010X is a high-performance XP-Series connecting rod bearing set engineered for Chevrolet Big Block engines (369–502 cubic inch, Generation IV, V, and VI), including the GM W-Series. This set is sized 0.010 in. undersize for use with reground crankshafts and features a narrowed profile on the crank cheek side for compatibility with high-performance stroker and aftermarket crank combinations.

These bearings are built with King's race-proven pMax Black tri-metal technology — an enhanced copper-lead intermediate layer bonded to a steel backing with a nickel plate barrier, topped with a lead/tin/copper Babbitt performance overlay. The SecureBond micro-etch adhesion process locks the layers together, dramatically reducing the risk of delamination under extreme loads or metal-to-metal contact events.

Key Features:

• pMax Black overlay — 24% stronger and 17% higher fatigue resistance compared to conventional tri-metal race bearings
• SecureBond adhesion process — micro-etch surface preparation for superior inter-layer structural integrity
• Narrowed bearing profile — reduced width on the crank cheek side increases crush height for improved bore contact, heat transfer, and spin resistance at high RPM
• RadiaLock technology — engineered for optimal crush height and consistent seating
• Bull's Eye wall tolerance — all shells held to an industry-leading ±0.0001 in. wall thickness tolerance
• Tri-metal copper-lead construction — nickel barrier layer plus hardened performance overlay over steel backing
• 0.010 in. undersize — for use with crankshafts ground 0.010 in. under standard journal diameter

King XP-Series rod bearings are purpose-built for high-load, high-RPM racing and performance applications running forged steel aftermarket crankshafts. Whether building a circle track, drag race, or high-output street engine on a Big Block Chevy platform, the CR 808XPN010X delivers the load capacity and precision tolerances that serious engine builders demand.