What does 'undersize 0.010' mean for these bearings?

This means the bearings are 0.010 inch smaller in diameter than standard size. They are designed to be used with a crankshaft that has also been machined down by 0.010 inches to remove wear or imperfections.

Are these bearings suitable for all LS engines?

This specific set is designed for GM Vortec and LS-Series Gen III, IV, and V engines. It's always best to verify fitment for your specific engine model and year.

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

Main bearings support the crankshaft within the engine block. They create a precise clearance that allows the crankshaft to spin freely while maintaining a consistent oil film, which is essential for lubrication and preventing metal-on-metal contact.

Specifications

Brand: King Engine Bearings
Part #: MB5293MC010
UPC: 611500619168

King Engine Bearings GM Vortec /LS-Series Gen III IV V (Size 1.0) Main Bearing Set

Name: King Engine Bearings GM Vortec /LS-Series Gen III IV V (Size 1.0) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-vortec-ls-series-gen-iii-iv-v-size--t14-432451
Price: 100.07 USD
Availability: BackOrder

$100.07

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King Engine Bearings main bearing set for GM Vortec/LS-Series Gen III IV V. Undersize 0.010.

Key Features

Main bearing set for GM Vortec and LS-Series Gen III, IV, and V engines.
Undersize 0.010 inch, designed for machined crankshafts.
Well-built by King Engine Bearings for reliable performance.
Crucial for maintaining oil pressure and engine health during rebuilds.

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About this part

Product Details

When you're rebuilding the bottom end of your GM Vortec or LS-Series Gen III, IV, or V engine, getting the main bearings right is crucial for oil pressure and engine longevity. This main bearing set from King Engine Bearings is specifically made for these popular GM V8s, ensuring a proper fit and function during your rebuild.

These bearings are manufactured to precise tolerances, which is key for maintaining consistent oil film thickness between the crankshaft and the main bearing journals. This set is 0.010 inch undersize, meaning it's intended for crankshafts that have been machined down by 0.010 inches to clean up wear or damage. King Engine Bearings are well-built and a popular choice for engine builders looking for reliable components for their builds.