What does the '+0.020' size designation mean for these bearings?

The '+0.020' designation means these bearings are 0.020 inches larger in diameter than standard size. This indicates they are intended for use with a crankshaft that has been machined down by 0.020 inches to ensure proper oil clearance and fit.

Are these bearings suitable for any GM LS engine?

This specific set is listed for GM LS 4.3 V6 engines. It's important to verify fitment for your specific engine application, as other LS engines may use different bearing sizes or types.

What is the primary function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while maintaining precise oil clearance, which is critical for lubrication and preventing metal-to-metal contact.

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Specifications

Brand: King Engine Bearings
Part #: MB4555MC020
UPC: 611500616747

King Engine Bearings GM Ls 4.3 V6 (Size +0.020) Main Bearing Set

Name: King Engine Bearings GM Ls 4.3 V6 (Size +0.020) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-ls-4-3-v6-size-0-020-main-bearing-s-t14-432417
Price: 70.72 USD
Availability: BackOrder

$70.72

On Backorder

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King Engine Bearings main bearing set. This set is 0.020 inches oversize.

Key Features

This is a main bearing set from King Engine Bearings.
The set is 0.020 inches oversize.
Designed for GM LS 4.3 V6 engines.

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About this part

Product Details

This main bearing set from King Engine Bearings includes the necessary components to replace your engine's main bearings. These bearings are specifically sized at 0.020 inches oversize, meaning they are intended for use with a crankshaft that has been machined down by 0.020 inches to account for wear or to achieve a specific clearance.

King Engine Bearings is a well-known name in engine components, and this set is built to meet the demands of engine rebuilding. The 0.020 inch oversize specification is crucial for ensuring proper oil clearance and bearing function when rebuilding an engine with a worn or machined crankshaft. Using the correct oversize bearings is essential for the longevity and performance of your engine's rotating assembly.