What does the '020X' size designation mean for these bearings?

The '020X' in the part number indicates that these main bearings are 0.020 inches undersize. This means they are intended for use with a crankshaft that has been machined down by 0.020 inches to correct wear or runout.

What is the Alecular material used in these bearings?

Alecular is a bi-metal material used by King Engine Bearings in their HP Series racing bearings. It's chosen for its strength and ability to withstand higher loads and temperatures commonly found in performance engine applications.

Are these bearings suitable for a daily driver engine rebuild?

While these HP Series bearings are well-built and durable, they are specifically designed for racing applications. For a standard daily driver rebuild, you might consider King's SI Series bearings, which are also a popular choice for performance street engines.

King Engine Bearings Ford 260CI/289CI 302 5.0L Windsor (Size 020X ) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB529HP020X
UPC: 611500530982

King Engine Bearings Ford 260CI/289CI 302 5.0L Windsor (Size 020X ) Main Bearing Set

Name: King Engine Bearings Ford 260CI/289CI 302 5.0L Windsor (Size 020X ) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-260ci-289ci-302-5-0l-windsor-size-t14-567889
Price: 119.35 USD
Availability: BackOrder

$119.35

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King Engine Bearings HP Series main bearing set for Ford 260-5.0L Windsor engines. Size 020X. Built for performance applications.

Key Features

Fits Ford 260ci, 289ci, 302, and 5.0L Windsor engines.
Main bearing set is sized 0.020 inches undersize.
Features King's HP Series Alecular bi-metal construction for racing applications.
Designed for improved performance and durability in demanding engine builds.
Compatible with a wide range of Ford vehicles including AC Shelby Cobra, Ford Bronco, and Ford F-100.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your Ford 260, 289, 302, or 5.0L Windsor engine, getting the right main bearings is crucial for long-term health and performance. These HP Series main bearings from King Engine Bearings are designed with racing applications in mind, offering a robust solution for engines that see harder use.

King's HP Series bearings utilize an Alecular material, which is a bi-metal construction chosen for its strength and durability under demanding conditions. This specific set is sized 0.020 inches undersize, which is important to note if you've had your crankshaft ground during the rebuild process. They are a step up from standard bearings, offering improved performance characteristics for those looking to push their engine a bit further.

This set fits a wide range of Ford vehicles from the 1960s through the 1990s, including models like the Ford Bronco, Ford F-100, and AC Shelby Cobra. Always ensure your crankshaft journals have been machined to the correct undersize specification before installing these bearings.