What does the '+1.0mm' sizing mean for these bearings?

The '+1.0mm' indicates that these main bearings are 1.0 millimeter larger than the standard size. This is typically used when the engine's crankshaft journals have been machined down and then ground undersize, or to achieve a specific bearing clearance during an engine rebuild.

What is a bimetal bearing construction?

A bimetal bearing construction, like the one used here with an aluminum base, offers good performance characteristics. The aluminum alloy provides excellent conformability and embeddability, which helps the bearing adapt to the crankshaft and absorb small particles.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for the specified Ford J4B or J4C engine.

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Specifications

Brand: King Engine Bearings
Part #: MB5576AM1.0
UPC: 611500205743

King Engine Bearings Ford J4B/J4C (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings Ford J4B/J4C (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-j4b-j4c-size-1-0mm-main-bearing-s-t14-770856
Price: 37.84 USD
Availability: BackOrder

$37.84

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King Engine Bearings Main Bearing Set MB5576AM1.0. For Ford J4B, J4C engines. Size +1.0mm.

Key Features

This product is a main bearing set.
Designed for Ford J4B and J4C engines.
Bearings are sized at +1.0mm.
Constructed with a bimetal (aluminum base) design.

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About this part

Product Details

This is a main bearing set from King Engine Bearings, part number MB5576AM1.0. You get the main bearings needed for a Ford J4B or J4C engine build. These bearings are made with a bimetal construction, meaning they have an aluminum base for good performance.

These bearings are sized at +1.0mm, which is important if you're rebuilding an engine that has already been machined or if you're looking for a specific clearance. King Engine Bearings is a well-known name in engine components, and their bearings are a solid option for many engine rebuilds.