What is the main benefit of King's PMaxBlack technology?

King's PMaxBlack technology is designed to provide superior load capacity. This means the bearings can handle higher stresses and pressures within the engine, contributing to their durability and performance.

What does 'optimal crush height' mean for these bearings?

Radialock technology helps achieve optimal crush height. This refers to the slight interference fit of the bearing in its housing, which is essential for keeping the bearing securely in place and ensuring proper oil clearance.

Are these bearings suitable for a high-performance engine build?

The PMaxBlack technology for superior load capacity and the tri-metal copper-based construction make these bearings a strong choice for many engine builds, including those seeking improved durability and performance.

Specifications

Brand: King Engine Bearings
Part #: MB5511XP
UPC: 611500590856

King Engine Bearings General Motors 326 / 350 / 389 / 400 3 Inch Main Bearing Set

Name: King Engine Bearings General Motors 326 / 350 / 389 / 400 3 Inch Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-326-350-389-400-3-inch--t14-211285
Price: 186.43 USD
Availability: BackOrder

$186.43

On Backorder

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King Engine Bearings main bearing set for GM 326, 350, 389, 400 engines. Features PMaxBlack for superior load capacity.

Key Features

Fits many Buick, Chevrolet, Oldsmobile, and Pontiac vehicles with GM 326, 350, 389, and 400 engines.
Features King's PMaxBlack technology for superior load capacity.
Incorporates Radialock for optimal crush height and a secure fit.
Constructed with a tri-metal copper-based material for durability.
Designed for engines with a 3-inch main journal.

⚠️ 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 rebuilding the bottom end of your General Motors V8, a solid set of main bearings is crucial. This main bearing set from King Engine Bearings is designed for a range of popular GM engines, including the 326, 350, 389, and 400 cubic inch displacements, all featuring a 3-inch main journal. King has been specializing in bearings since 1960, focusing on supplying well-built components for engine builds.

This set utilizes King's PMaxBlack technology, which offers superior load capacity, helping to ensure durability under demanding conditions. The bearings also incorporate Radialock, a design feature that helps achieve optimal crush height for a secure fit within the engine block. The tri-metal copper-based material provides a strong foundation for reliable performance, making this a solid option for your engine rebuild project.

This bearing set fits a wide variety of vehicles from the late 1950s through the late 1970s, including many Buick, Chevrolet, Oldsmobile, and Pontiac models. Ensure you check the full fitment list to confirm compatibility with your specific application.