What does the .020 size indicate for these bearings?

The .020 size means these bearings are manufactured to be 0.020 inches smaller than the standard size. This is typically used when the crankshaft journals have been machined undersize during an engine rebuild to achieve the correct oil clearance.

What type of engines does this bearing set fit?

This set is made for General Motors V8 engines with displacements of 326, 350, 389, and 400 cubic inches. It specifically requires engines that use a 3-inch diameter main journal.

Are these bearings environmentally friendly?

Yes, the manufacturer states that the composite material used in these bearings is lead-free and environmentally safe.

King Engine Bearings GM 326/350/389/400 w/ 3in Main (Size .020) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5511HP020
UPC: 611500582752

King Engine Bearings GM 326/350/389/400 w/ 3in Main (Size .020) Main Bearing Set

Name: King Engine Bearings GM 326/350/389/400 w/ 3in Main (Size .020) Main Bearing Set
Brand: King Engine Bearings
Price: 186.43 USD
Availability: InStock

$186.43

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King Engine Bearings GM 326/350/389/400 w/ 3in Main (Size .020) Main Bearing Set. Built with lead-free composite and bi-metal aluminum for high performance.

Key Features

Fits 27+ vehicle make/model combinations including Buick, Chevrolet, Oldsmobile, and Pontiac.
Main bearing set for General Motors 326, 350, 389, and 400 engines with 3-inch main journals.
Bearings are sized .020 inches undersize for specific engine rebuilding applications.
Constructed with a lead-free, environmentally safe composite material.
Features a bi-metal aluminum construction for high performance.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

King Engine Bearings has been specializing in engine bearings since 1960, aiming to provide the highest quality available. This main bearing set, part number MB5511HP020, is designed for a range of General Motors engines including the 326, 350, 389, and 400 cubic inch displacements, specifically those with a 3-inch main journal. It's important to note that these bearings are sized .020 inches undersize, which is crucial for proper engine assembly and oil clearance when rebuilding or repairing your engine.

This set utilizes a lead-free, environmentally safe composite material combined with a bi-metal aluminum construction. This combination is chosen for its high-performance characteristics, aiming to ensure durability and reliable operation within your engine's critical rotating assembly. When you're working on engines like those found in a 1975 Buick Skylark, a 1979 Pontiac Firebird, or even a classic 1964 Pontiac GTO, having well-built bearings is key to a successful rebuild.