What does the +.002 size mean for these bearings?

The +.002 size indicates that these bearings are 0.002 inches larger in diameter than standard size bearings. This means they are intended for use when the crankshaft journals have been machined down by 0.002 inches, a common practice during engine rebuilding to ensure proper oil clearance.

What is a bimetal bearing with an aluminum silicon base?

A bimetal bearing uses two different materials bonded together. In this case, it has a steel backing for strength and a bimetal overlay with an aluminum silicon base. This combination offers good wear resistance and conformability, making it suitable for engine bearing applications.

Do I need to purchase anything else to install these bearings?

When rebuilding an engine, you will typically need a full engine gasket set, oil, and oil filter. It's also recommended to have a torque wrench and other standard engine building tools. Always refer to the vehicle's service manual for a complete list of required parts and procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5834SI0.5
UPC: 611500603068

King Engine Bearings Chevrolet 121Ci/Ln2 134Ci +.002 (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Chevrolet 121Ci/Ln2 134Ci +.002 (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-121ci-ln2-134ci-002-size-0-5-t14-771000
Price: 56.58 USD
Availability: BackOrder

$56.58

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King Engine Bearings Chevrolet 121Ci/Ln2 134Ci +.002 (Size +0.50mm) Main Bearing Set. Essential for engine rebuilds needing precise tolerances.

Key Features

Fits a wide range of Buick, Chevrolet, GMC, and Pontiac vehicles from 1992-2002.
Main bearing set designed for Chevrolet 121ci and LN2 134ci engines.
This set is sized +.002 inches (0.50mm) for use with ground crankshaft journals.
Constructed with a bimetal design featuring an aluminum silicon base.
Ensures proper crankshaft support and oil clearance during engine rebuilds.

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About this part

Product Details

If you're rebuilding the engine in a variety of GM vehicles from the early 90s to early 2000s, like a Chevrolet Cavalier, S10, or GMC Sonoma, you'll need a solid set of main bearings to get it running right. These main bearings from King Engine Bearings are designed to replace your worn-out originals, ensuring proper crankshaft support and oil clearance. They are a bimetal type, meaning they have an aluminum silicon base, which is a common and well-built material for modern engine bearings.

This particular set is sized at +.002 inches, or 0.50mm, which is crucial for engines that have had their crankshaft journals ground undersize during a rebuild. Using the correct undersize bearing ensures that the oil clearance between the crankshaft and the bearing is within the manufacturer's specifications, which is vital for oil pressure and engine longevity. King Engine Bearings is a well-known name in the industry, and these bearings are a popular choice for many engine builders looking for a reliable replacement part.