What does '0.075 undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.075 inches from its original size. This is a common step during engine rebuilding to ensure a fresh, perfectly matched surface for the bearings.

What is the overlay material on these bearings?

The bearings feature a high-performance, multi-layer overlay. This material is designed to help manage heat and reduce friction, contributing to the longevity of the engine.

Are these bearings suitable for a stock engine rebuild?

These bearings are specifically sized for a 0.075 inch undersize crankshaft. They are best suited for engine builds where the crankshaft has been machined to this specific dimension, often found in performance or rebuilt engines.

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Specifications

Brand: King Engine Bearings
Part #: MB5734MC0.75
UPC: 611500618611

King Engine Bearings Ford 302 CID Coyote (Size 0.75) Main Bearing Set

Name: King Engine Bearings Ford 302 CID Coyote (Size 0.75) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-302-cid-coyote-size-0-75-main-bea-t14-432502
Price: 103.46 USD
Availability: BackOrder

$103.46

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Key Features

This is a 0.075 inch undersize main bearing set for Ford 302 CID Coyote engines.
Features a high-performance, multi-layer overlay for improved durability and heat management.
Designed to ensure proper oil clearance for smooth crankshaft operation.
Helps reduce friction and prevent premature engine wear.

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About this part

Product Details

These main bearings are 0.075 inches undersize, meaning they're designed for crankshafts that have been machined down to match this specific size. This is a common practice when rebuilding an engine to ensure a fresh, perfectly matched surface for the bearings to run on. King Engine Bearings uses a high-performance overlay that's built to handle the stresses of a performance engine.

The overlay on these bearings is a multi-layer material that helps manage heat and reduce friction. This is important because main bearings are critical for keeping the crankshaft spinning smoothly within the engine block. A well-built bearing set like this helps ensure proper oil clearance, which is essential for lubrication and preventing premature wear.

If you're rebuilding a Ford 302 CID Coyote engine and have had the crankshaft turned to a 0.075 inch undersize, this set from King Engine Bearings is a solid option to get your engine back in running order.