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

The +1.0mm sizing indicates that these bearings are designed for use when the crankshaft journals have been machined down by 1.0mm. This is typically done during an engine rebuild to provide a fresh, smooth surface for the new bearings.

What material are these main bearings made from?

These main bearings are constructed with a bimetal aluminum silicon base. This material is chosen for its durability and performance in engine applications.

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 a complete engine rebuild of the specified GMC V6 engines.

Specifications

Brand: King Engine Bearings
Part #: MB4080SI1.0
UPC: 611500432903

King Engine Bearings GMC 2.8L/3.4L V6 173Ci/207Ci (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings GMC 2.8L/3.4L V6 173Ci/207Ci (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gmc-2-8l-3-4l-v6-173ci-207ci-size-1-0m-t14-770353
Price: 48.99 USD
Availability: BackOrder

$48.99

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King Engine Bearings main bearing set MB4080SI1.0. Features bimetal aluminum silicon base construction for GMC 2.8L/3.4L V6 engines.

Key Features

Fits many Buick, Cadillac, Chevrolet, GMC, Isuzu, Jeep, and Oldsmobile V6 models.
Main bearing set for GMC 2.8L, 3.4L V6 173ci, 207ci engines.
Bearings are sized +1.0mm, intended for use with machined crankshaft journals.
Constructed with a bimetal aluminum silicon base material.

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About this part

Product Details

When you're rebuilding the bottom end of your GMC 2.8L or 3.4L V6 engine, a solid set of main bearings is crucial. This main bearing set from King Engine Bearings includes the necessary components to replace your worn-out bearings. They are constructed with a bimetal aluminum silicon base, which is a well-built material for handling the stresses of engine operation.

These bearings are specifically sized at +1.0mm, meaning they are intended for use when the crankshaft journals have been machined down by 1.0mm. This is a common practice during an engine rebuild to ensure a fresh, smooth surface for the bearings to run on. King Engine Bearings is a popular name in engine components, known for producing reliable parts for a wide range of vehicles.

This particular set fits a broad spectrum of vehicles, including many GMC, Chevrolet, Buick, and Oldsmobile models from the 1980s through the early 2000s. Always double-check the fitment guide to confirm compatibility with your specific year and model.