What does the '010X' in the part number mean?

The '010X' indicates that this main bearing set is 0.010 inches undersize. This means the bearings are designed to fit a crankshaft that has been machined down by 0.010 inches. Always confirm your crankshaft journal size before ordering.

What is the difference between the HP series and standard bearings?

The HP series bearings from King Engine Bearings feature a molecular structure that is optimized for higher performance and racing applications. This generally means they offer improved durability and a greater capacity to handle heavy loads compared to standard bearings.

Does this bearing set come with everything needed for installation?

This product is a set of main bearings. It does not include other components like crankshaft bolts, seals, or gaskets. You will need to refer to your vehicle's service manual for a complete list of parts and procedures for engine assembly.

Specifications

Brand: King Engine Bearings
Part #: MB5013HP010X
UPC: 611500565779

King Engine Bearings Chevy LS1/LS2/LS4/LS6 Performance Main Bearing Set - Size 010X

Name: King Engine Bearings Chevy LS1/LS2/LS4/LS6 Performance Main Bearing Set - Size 010X
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chevy-ls1-ls2-ls4-ls6-performance-main-t14-133253
Price: 197.64 USD
Availability: BackOrder

$197.64

On Backorder — Expected to ship by Oct 22, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings main bearing set for GM LS Gen III IV engines. Size 0.010 inch undersize.

Key Features

Fits GM LS Gen III and Gen IV engines.
This is a main bearing set, sized 0.010 inch undersize.
Part of King Engine Bearings' HP (high performance) series.
Features a molecular structure optimized for racing applications.
Designed for improved durability and load-carrying capacity.

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About this part

Product Details

When you're rebuilding the bottom end of your GM LS Gen III or IV engine, you need main bearings that can handle the demands of performance. This main bearing set from King Engine Bearings is part of their HP (high performance) line, designed for engines like those found in the Chevrolet Corvette, Camaro, and Silverado. These bearings are built to be a strong option for builds that see more than just daily driving.

This specific set is sized 0.010 inches undersize, which is crucial if your crankshaft journals have been machined to match. The HP series bearings feature a molecular structure that's optimized for racing applications, meaning they offer improved durability and load-carrying capacity over standard bearings. They are designed to fit right into your LS-series engine block, making them a solid choice for your engine project.