OE replacment Bi-metal For General Motors 379, V8 OHV - MB5257SI

In stock
(Only %1 left)
As low as $57.33
King Bearings' bi-metal SI material blends Aluminum with 2.5-3% Silicon, providing strength. Ideal for medium-load engines, particularly engines using nodular cast iron crankshafts. It excels as a Lead-free OE replacement Bearing.
Commonly use for medium-load engines particularly ones using nodular cast iron crankshafts
Crankshaft Dim. Housing Dim. Length Thickness
Positions 1,2,4,5:
74.94 / 74.92 mm
2.9504 / 2.9495 inch

Position 3:
74.94 / 74.91 mm
2.9503 / 2.9493 inch
79.85 / 79.82 mm
3.1437 / 3.1427 inch
Positions 1,2,4:
22.8 mm
0.896 inch

Position 3:
28.8 mm
1.134 inch

Position 5:
35.3 mm
1.390 inch
2.423 mm
0.0954 inch
Main Bearing Set For GENERAL MOTORS 379, V8 OHV - MB5257SI

Performance features

Material features

Tech Features

Aluminum Based
aluminum base
Bi Metal Aluminum material

Lead free Aluminum based material used for low to heavy load engines

Lead free
Lead Free
Environmentally safe composite

A lead-free bearing material prioritizes environmental sustainability and safety, utilizing alternative compounds to achieve optimal performance in diverse applications.


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