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 handling the immense forces generated during combustion, ensuring proper alignment and reducing friction.

What does the 'HP020' in the part number signify?

The 'HP' typically indicates a high-performance bearing design, and the '020' signifies that these bearings are 0.020 inches oversize. This is important if your crankshaft has been machined to an undersize.

Are these bearings suitable for a performance build or just stock replacement?

The bi-metal aluminum construction and lead-free composite material are designed for high performance, making them suitable for both stock replacement and performance-oriented engine builds where durability and consistent support are crucial.

Specifications

Brand: King Engine Bearings
Part #: MB557HP020
UPC: 611500530043

King Engine Bearings General Motors 75+ 262/267/302/307/327/327/350 Main Bearing Set

Name: King Engine Bearings General Motors 75+ 262/267/302/307/327/327/350 Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-75-262-267-302-307-327--t14-581385
Price: 108.83 USD
Availability: BackOrder

$108.83

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King Engine Bearings main bearing set for GM 262-350ci V8 engines. Features lead-free composite and bi-metal aluminum for improved performance.

Key Features

Fits a wide range of General Motors vehicles with 262, 267, 302, 307, 327, and 350 cubic inch V8 engines.
Features a lead-free, environmentally safe composite material.
Constructed with a bi-metal aluminum material for high performance.
Designed to support the crankshaft and ensure smooth engine operation.
Specialized bearing manufacturer with decades of experience.

⚠️ 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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About this part

Product Details

If you're working on a General Motors V8 engine from the mid-70s up through the early 2000s, specifically those with displacements like 262, 267, 302, 307, 327, or 350 cubic inches, this main bearing set from King Engine Bearings is designed to get your engine rebuilt right. These bearings are a critical component for the crankshaft's smooth operation, and King specializes in making them well-built.

King Engine Bearings has been focused on making top-tier bearings since 1960. This particular set uses a lead-free environmentally safe composite material, combined with a bi-metal aluminum construction. This combination is chosen for high performance, helping to ensure the crankshaft is properly supported and lubricated under various operating conditions. The material choice aims for durability and consistent performance over time.

This set is a solid option for many GM vehicles, including popular models like the Chevrolet C1500, Buick LeSabre, and Cadillac DeVille from the specified years. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.