Racing Tri-metal For Ford ECOBOOST 3.5L V6 - MB4549XP

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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
Positions 1,2,3,4:
67.51 / 67.49 mm
2.6580 / 2.6570 inch

Position 4:
72.20 / 72.00 mm
2.8425 / 2.8346 inch

Position 4:
75.60 / 75.40 mm
2.9764 / 2.9685 inch
Positions 1,2,3,4:
72.42 / 72.40 mm
2.8510 / 2.8504 inch

Position 4:
91.40 / 91.20 mm
3.5984 / 3.5906 inch

Position 4:
110.60 / 110.40 mm
4.3543 / 4.3465 inch
Positions 1,2,3,4:
22.8 mm
0.898 inch

Positions 4,4:
0.0 mm
0.000 inch
Positions 1,2,3,4:
2.454 mm
0.0966 inch

Positions 4,4:
2.920 mm
0.1150 inch
Main Bearing Set For FORD ECOBOOST 3.5L V6 - MB4549XP
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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.

Superior load capacity

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

Optimal crush height and heat transfer

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

Superior hydrodynamic lubrication

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

Bulls Eye™
Bull's Eye Tolerance

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

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