Racing Tri-metal For Buick/Pontiac/Oldsmobil V6 - MB 443XP

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King Bearings popular XP Series features the pMaxBlack™ overlay - producing superior load capacity. XP is a tri-metal Lead Bronze layered material, with a nano-scaled hardening process of Babbitt overlay that withstands 10,200 PSI load. Ideal for Circle Track, Drag Racing, off-shore, and other applications that utilize steel crankshafts.
Commonly use for most of the race applications including circle track, drag racing, off-shore, and other applications that utilize steel crankshafts
Crankshaft Dim. Housing Dim. Length Thickness
63.50 / 63.47 mm
2.5000 / 2.4990 inch
68.28 / 68.25 mm
2.6880 / 2.6870 inch
Positions 1,3,4:
22.0 mm
0.868 inch

Position 2:
27.0 mm
1.062 inch
2.375 mm
0.0935 inch
Main Bearing Set For BUICK/PONTIAC/OLDSMOBIL V6 - MB 443XP
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Performance features

Material features

Tech Features

Copper Based
Copper Based
Tri-Metal Copper based material

Leaded or Lead Free tri layers bearings for low to heavy load engines.

pMaxBlack™
pMaxBlack
Superior load capacity

Overlay features proprietary nano-scaled hardening process producing superior load capacity.

U-Groove™
u-groove
Greater load surface

A 90⁰ oil groove shape, keep oil flow intact, increases bearing load capacity by expanding the surface area.

Radialock™
Radialock
Optimal crush height and heat transfer

An optimal crush height value obtained from an optimization process of each performance bearing crush height

Eccentrix™
Eccentrix
Superior hydrodynamic lubrication

An optimized eccentricity value reached through elasto-hydrodynamic analysis and dynamic calculations.

Bulls Eye™
Bull's Eye Tolerance
PERFECT CLEARANCE IN EVERY SET

Outperforms the industry’s wall thickness tolerance, ensuring the least thickness variation shell-to-shell.

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