What does the '+.002 OS/OD' sizing mean for these bearings?

This indicates the bearings are designed for a housing bore that is +.002 inches larger than the standard size. The 'OS/OD' refers to the outer diameter being oversize. This is a common requirement when the crankshaft has been machined or when dealing with a slightly worn housing bore.

What is the material of these main bearings?

These bearings are constructed from a bimetal material, featuring an aluminum silicon base. This type of material is chosen for its good wear characteristics and ability to handle the loads and temperatures within an engine.

Do these bearings come with installation instructions?

While installation instructions are not included with the bearings themselves, it is highly recommended to consult the vehicle manufacturer's service manual or a professional mechanic for the correct installation procedures and torque specifications.

Specifications

Brand: King Engine Bearings
Part #: MB5834SI1.0
UPC: 611500603082

King Engine Bearings Chevrolet 121Ci/Ln2 134Ci Housing Bore +.002 (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings Chevrolet 121Ci/Ln2 134Ci Housing Bore +.002 (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevrolet-121ci-ln2-134ci-housing-bore-t14-771002
Price: 56.58 USD
Availability: BackOrder

$56.58

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King Engine Bearings main bearing set for Chevrolet 121ci, LN2 134ci engines. Size +1.0mm.

Key Features

Fits 1992-2002 Chevrolet Cavalier, 1994-2000 Chevrolet S10, 1994-2000 GMC Sonoma, and many other vehicles.
Main bearing set for Chevrolet 121ci, LN2 134ci engines.
Features a bimetal construction with an aluminum silicon base.
This set is +.002 inch oversize in the outer diameter (OD) and 1.0mm oversize in the housing bore.
Designed to provide proper crankshaft support and reduce friction.

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About this part

Product Details

If you're rebuilding the bottom end of your Chevrolet 121ci or LN2 134ci engine, a solid set of main bearings is crucial for proper crankshaft support. This main bearing set from King Engine Bearings is built with a bimetal construction, featuring an aluminum silicon base, which helps ensure durability and consistent performance for your engine's core components.

This particular set is sized at +1.0mm oversize, specifically designed to accommodate a housing bore that is +.002 inches larger than stock. This precise sizing is important for achieving the correct clearances, which is key to reducing friction and wear on your crankshaft. King Engine Bearings is a well-known name in engine components, and this set is a popular choice for many rebuilds across a range of vehicles including Chevrolet Cavaliers, S10s, and GMC Sonomas.