What does '0.020 inches undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.020 inches. It's a common specification for rebuilt or performance-modified crankshafts to ensure optimal fit and oil clearance.

What type of engine applications are these bearings best suited for?

These bearings are specifically made for GM Vortex, Gen III, and Gen IV LS-series engines, particularly when rebuilding or modifying the bottom end for improved performance or reliability.

What is the benefit of the high-performance overlay material?

The specialized overlay material is designed to withstand the stresses of performance engine use while also helping to maintain correct oil clearance and pressure, which is vital for engine longevity.

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Specifications

Brand: King Engine Bearings
Part #: MB5876SI020

King Engine Bearings GM Vortex / Gen III IV LS-Series Main Bearing Set

Name: King Engine Bearings GM Vortex / Gen III IV LS-Series Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-vortex-gen-iii-iv-ls-series-main-be-t14-888576
Price: 97.72 USD
Availability: InStock

$97.72

Only 1 left in stock

King Engine Bearings LS Main Bearing Set MB5876SI020. This set is 0.020 inches undersize.

Key Features

This set is 0.020 inches undersize.
Designed for GM Vortex, Gen III, and Gen IV LS-series engines.
Features a high-performance overlay material.
Helps maintain proper oil clearance and pressure.

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About this part

Product Details

These main bearings from King Engine Bearings are built with a high-performance overlay that's 0.020 inches undersize, making them a solid option for rebuilding or modifying your GM Vortex, Gen III, or Gen IV LS-series engine. When you're rebuilding the bottom end of your LS engine, getting the main bearings right is crucial for oil pressure and overall engine health. King uses a specialized overlay material designed to handle the stresses of performance applications while maintaining proper oil clearance.

The 0.020 inch undersize specification means these bearings are intended for crankshafts that have been machined down by 0.020 inches. This is a common practice when rebuilding an engine to ensure a fresh, perfectly round surface for the bearings to run on. King's focus on material science means these bearings offer a good balance of strength and conformability, helping to protect your crankshaft and ensure consistent oil flow throughout the engine's life.