What does the .001 size mean for these main bearings?

The .001 size indicates that these bearings are 0.001 inches smaller than standard size. This is often used in engine rebuilding when the crankshaft journals have been machined undersize to ensure a proper bearing clearance.

What is PMaxBlack and Radialock technology?

PMaxBlack is King's overlay material that provides superior load capacity, helping the bearings withstand higher stress. Radialock is a feature that helps maintain the correct crush height of the bearing during installation, ensuring it seats properly in the block.

Are these bearings suitable for a performance build?

Yes, the PMaxBlack overlay and tri-metal copper-based material are designed for superior load capacity and durability, making them a solid option for both standard rebuilds and performance-oriented Ford V8 engines.

King Engine Bearings Ford V8 351ci 5.8L / 400ci 6.6L 16V (Size .001) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5505XP001
UPC: 611500532085

King Engine Bearings Ford V8 351ci 5.8L / 400ci 6.6L 16V (Size .001) Main Bearing Set

Name: King Engine Bearings Ford V8 351ci 5.8L / 400ci 6.6L 16V (Size .001) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-v8-351ci-5-8l-400ci-6-6l-16v-size-t14-672552
Price: 118.98 USD
Availability: BackOrder

$118.98

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King Engine Bearings Ford V8 351ci 5.8L / 400ci 6.6L 16V (Size .001) Main Bearing Set. Features PMaxBlack for superior load capacity.

Key Features

Fits 1969-1996 Ford Bronco, F-150, E-Series vans, and more.
Main bearing set for Ford V8 351ci (5.8L) and 400ci (6.6L) 16V engines.
Size is .001 inch undersize, important for engine rebuilds.
Features PMaxBlack overlay for superior load capacity.
Includes Radialock technology for optimal crush height.
Constructed with a tri-metal copper-based material.

⚠️ 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 V8, whether it's a 351ci (5.8L) or a 400ci (6.6L) engine, getting the main bearings right is crucial for long-term reliability. King Engine Bearings has been specializing in these critical components since 1960, aiming to provide the highest quality bearings available. This set is specifically designed for those engines and comes at a .001 inch undersize, which is important to note for your build.

What sets these bearings apart is their PMaxBlack overlay, which offers superior load capacity, meaning they can handle more stress without failing. They also feature Radialock technology, which helps maintain optimal crush height during installation, ensuring a snug fit. The tri-metal copper-based material is well-built for durability and performance in demanding engine conditions. These bearings fit a wide range of Ford vehicles, including popular models like the Bronco, F-150, and Econoline vans.