What does the STDX size designation mean for these bearings?

The STDX designation indicates a specific undersize for the crankshaft journals. This sizing is critical for proper bearing clearance and oil film thickness. Always consult your engine's service manual to confirm if STDX is the correct size for your specific crankshaft.

What is the PMaxBlack technology mentioned?

PMaxBlack is King Engine Bearings' proprietary technology designed to enhance the bearing's ability to withstand higher loads. It contributes to improved durability and performance under demanding conditions.

Does this bearing set come with installation instructions?

While this set includes the necessary bearings for your engine rebuild, it's recommended to refer to the manufacturer's official installation guide or a trusted service manual for detailed procedures, torque specifications, and critical clearance measurements.

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

Specifications

Brand: King Engine Bearings
Part #: MB529XPSTDX
UPC: 611500531033

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

Name: King Ford 260ci/289ci/302/5.0L Windsor (Size STDX) Crankshaft Main Bearing Set (Set of 5)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-ford-260ci-289ci-302-5-0l-windsor-size-stdx-crankshaft-t14-171845
Price: 135.91 USD
Availability: BackOrder

$135.91

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings crankshaft main bearing set for Ford 260ci/289ci/302/5.0L Windsor engines. Size STDX. Built for superior load capacity.

Key Features

Fits Ford 260ci, 289ci, 302, and 5.0L Windsor engines.
Features PMaxBlack technology for superior load capacity.
Includes Radialock design for optimal crush height.
Constructed with a tri-metal copper-based material.
This is a set of 5 main bearings for a complete engine build.
Size STDX.

⚠️ 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 engine, getting the crankshaft main bearings right is crucial for long-term health and performance. This set from King Engine Bearings is specifically made for Ford 260ci, 289ci, 302, and 5.0L Windsor V8s, fitting a wide range of vehicles from classic AC Cobras and Ford Broncos to later model Ford Explorers.

King specializes in bearings, and this set features their PMaxBlack technology, which helps handle superior load capacity. They also use a Tri-metal copper-based material for durability and Radialock design to ensure optimal crush height during installation. This means the bearings seat properly and can take the stress of daily driving or more demanding use.

This set includes all five main bearings needed for your engine rebuild. King has been making bearings since 1960, focusing on supplying well-built components for engine builds.