What does the .026 size mean for these bearings?

The .026 size indicates that these bearings are .026 inches undersize. This is typically used when the crankshaft journals have been machined down to a smaller diameter to clean them up or account for wear. You must match the bearing size to the crankshaft journal size.

What is the material of these bearings?

These bearings are made from a bi-metal aluminum material with a lead-free composite overlay. This construction is chosen for its balance of strength and compliance, making it suitable for medium-load engine applications.

Are these bearings suitable for high-performance or racing engines?

These bearings are described as ideal for medium-load engines. For high-performance or racing applications, you may need to consult King Engine Bearings' specialized racing bearing lines to ensure they meet the extreme demands.

Specifications

Brand: King Engine Bearings
Part #: MB5257SI.026
UPC: 611500453694

King Engine Bearings General Motors 379 V8 OHV (Size .026) Crankshaft Main Bearings (Set of 5)

Name: King Engine Bearings General Motors 379 V8 OHV (Size .026) Crankshaft Main Bearings (Set of 5)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-379-v8-ohv-size-026-cra-t14-183464
Price: 71.35 USD
Availability: BackOrder

$71.35

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King Engine Bearings MB5257SI.026 crankshaft main bearings for GM 379 V8 OHV. Size .026. Set of 5.

Key Features

Fits 78+ vehicle make/model combinations.
Set of 5 crankshaft main bearings.
Size is .026 inches undersize.
Features a lead-free composite material.
Bi-metal aluminum construction.
Suitable for medium-load engines.

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About this part

Product Details

If you're rebuilding the bottom end of your General Motors 379 V8 OHV engine, getting the crankshaft main bearings right is crucial. These King Engine Bearings are a solid option for medium-load applications, offering a lead-free composite material designed for durability. They are specifically sized at .026 inches undersize, which is important if you're machining your crankshaft to match.

King has been specializing in engine bearings since 1960, focusing on producing reliable components. This set includes five main bearings, enough to complete the job on your V8. The bi-metal aluminum construction is a common and effective material for main bearings, balancing strength with the necessary compliance to handle the stresses of rotation.

This set is designed to fit a wide range of General Motors vehicles from the early 80s through the late 90s, including popular models like the Chevrolet C1500 and AM General Hummer. Always ensure you're using the correct bearing size for your specific crankshaft journal condition.