King Bearings Rod Bearings N STDX 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

HP Series

Metal structure : Bi-metal aluminum silicon alloy.

Race type : Drag racing, tractor pulls, monster trucks
Circle track (engines using nodular cast iron crankshaft)

Load Capacity : 8,000 PSI

Melting Temp : 450F

Engine requirements : High load - Short duration
or 
Medium load  - long duration (engines using nodular cast iron crankshaft)

HP is a Bi-Metal bearing series that was developed mainly for drag race applications needing a material that is harder than the Babbitt top layer.

HP series is particularly suitable for the following cases:

• When a tri-metal bearing’s Babbitt overlay extrudes over the sides or migrates to one end
• When the intermediate layer of a tri-metal bearing is exposed, damaging the crank journal 
• When contaminants enter the oil stream, scratching and damaging the crankshaft journals