What does the STDX size designation mean for these bearings?

The STDX designation means these are standard size bearings. They are intended for use with a crankshaft that is either within factory specifications or has been machined back to the standard size during an engine rebuild.

What is the PMaxBlack coating and Radialock technology?

PMaxBlack is a coating that helps these bearings handle superior load capacity, which is important for engine longevity. Radialock is a feature designed to help achieve optimal crush height, ensuring the bearing seats properly in the block.

Are any other parts needed when installing these main bearings?

When rebuilding an engine, it's recommended to replace other wear items such as rod bearings, piston rings, and gaskets. Always refer to the manufacturer's installation instructions for a complete list of recommended procedures and parts.

King Ford 260CI/289CI/302 5.0L Windsor Coated Crankshaft Main Bearing Set of 5 (Size STDX)

Specifications

Brand: King Engine Bearings
Part #: MB529XPCSTDX
UPC: 611500615610

King Ford 260CI/289CI/302 5.0L Windsor Coated Crankshaft Main Bearing Set of 5 (Size STDX)

Name: King Ford 260CI/289CI/302 5.0L Windsor Coated Crankshaft Main Bearing Set of 5 (Size STDX)
Brand: King Engine Bearings
Price: 186.43 USD
Availability: InStock

$186.43

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King Engine Bearings main bearing set for Ford 260-302 Windsor V8 engines. Size STDX. Features PMaxBlack for superior load capacity.

Key Features

Fits 1962-1977 Ford Bronco, 1969-1979 Ford F-100, and 1979-1996 Ford E-150 Econoline, among many other Ford vehicles with 260CI, 289CI, and 302 5.0L Windsor engines.
Features King's PMaxBlack coating for superior load capacity.
Radialock technology helps achieve optimal crush height for a secure fit.
Constructed with a tri-metal copper-based material for improved durability.
This is a standard size (STDX) bearing set, intended for a crankshaft that is within factory specifications or has been machined to standard size.

⚠️ 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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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of your Ford Windsor V8, like a 260, 289, or 302 5.0L, a solid set of main bearings is crucial for a healthy engine. King Engine Bearings has been specializing in this exact component since 1960, aiming to provide the best quality bearings available. This set, part number MB529XPCSTDX, is designed to fit a wide range of Ford vehicles, including classic Broncos, F-Series trucks, and Econoline vans from various years.

These bearings are built with a tri-metal copper-based material for durability. They feature King's PMaxBlack coating, which helps handle superior load capacity, and Radialock technology for optimal crush height. This means they're well-built to support the crankshaft reliably, which is key for longevity in these popular Ford V8s. The STDX size indicates they are 0.000 inch standard size, meaning they are meant for a freshly machined or perfectly straight crankshaft.