King Bearings XP Race Rod Bearings ND STD GM SBC 265 283 302 327 V8 1955-1967

Description: GM SBC 265, 283, 302, 327 V8 1955-1967

Bearing Types: 

MB - Main bearing set

CR - Con Rod bearing set

CS - Camshaft bearing set

TW - Thrust washer set

Material construction: 

HP - Bi-metal aluminum Silicon Alloy

XP - Tri-metal copper lead

Bearing Features:  

N - Narrowed

D - Dowel

Bearing size inches 

Dimension / Under Size e.g. "STD" for Standard, X equals .001" extra Clearance

Metal Structure : Tri-metal copper lead.

Race Type: Circle track, Off-road, off-shore, others that require steel crankshafts.

Engine requirements: High load - Long Duration.

HIGHER LOAD CAPACITY
The only bearing with load capacity of 17,000psi in the intermediate and 10,200psi in the overlay
BETTER FATIGUE RESISTANCE
The only bearing that goes through a hardening process creating a black fatigue resistance shield, which makes the overlay 24% stronger than any other bearing (11.5hv vs 14.5hv)
MORE ACCURACY
The only bearings with wall thickness variation of ±.0001” as a standard in comparison to ±0.00025”. 
MORE CONSISTENCY
from bearing to bearing, requiring less adjustment during assembly
ONE SET FITMENT
The only bearings that don’t require you to buy multiple sets to achieve desired oil clearance