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Racing Main Bearings for Chevrolet 396-502 GEN IV, V, VI - MB 556XPNC

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MB 556XPNC
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Racing Main Bearings for Chevrolet 396-502 GEN IV, V, VI - MB 556XPNC
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Racing Main Bearings Set For Chevrolet 396-502 GEN IV, V, VI - Coated Tri-Metal - MB 556XPC
Racing Main Bearings For Chevrolet 396-502 GEN IV, V, VI - MB 556TFC
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In stock
(Only %1 left)
As low as $167.07
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XPC Series is King Bearings‘ premium race bearings, featuring the pMaxBlack™ overlay that increases hardness and topped by the innovative pMaxKote™ ceramic nano-composite polymer coating, that enhances wear & seizure resistance without altering the bearing's original wall thickness dimensions.
Commonly use for circle track, drag racing, off-shore, and other applications that utilize steel crankshafts. Features ceramic nano-composite polymer coating, that enhances wear & seizure resistance without altering the bearing's original wall thickness
Crankshaft Dim. Housing Dim. Length Thickness
Positions 1,2,3,4:
69.83 / 69.80 mm
2.7492 / 2.7482 inch

Position 5:
69.82 / 69.79 mm
2.7488 / 2.7478 inch		 74.63 / 74.60 mm
2.9380 / 2.9370 inch		 Positions 1,2,3,4:
25.4 mm
1.000 inch

Position 5:
46.1 mm
1.815 inch		 2.375 mm
0.0935 inch
Bearings are narrower than typical OE/Stock version, for fillet crankshat
Main Bearing Set For CHEVROLET 396-502 GEN IV, V, VI  - MB 556XPNC
Suitable for models
Suitable for engines
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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.

pMaxKote™
pMaxKote
Factory applied polymer coating

Inhouse developed Polymer coating for race applications, enhances seizure & wear resistance, with no added thickness.

Narrowed
Narrowed
Narrowed Bearing Length

Enabeling to clear large filet cranks.

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.

Complete your build
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