What does the '0.5' size designation mean for these bearings?

The '0.5' in the part number indicates that these bearings are 0.0005 inches undersize. This means they are intended for use with a crankshaft that has been machined down by that specific amount to ensure proper clearance.

What is the Alecular material used in these bearings?

Alecular is a bi-metal material developed by King Engine Bearings. It's a racing-specific compound designed to offer improved load capacity and durability compared to standard bearing materials, making it suitable for high-performance engines.

Are these bearings suitable for a stock engine rebuild?

While these bearings are well-built, their Alecular material is specifically designed for racing and high-output applications. For a standard, stock engine rebuild, you might consider a different bearing line unless you plan on significantly increasing the engine's power output.

King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size 0.5) Performance Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5280HP0.5
UPC: 611500535093

King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size 0.5) Performance Main Bearing Set

Name: King Engine Bearings Ford Prod. V8 4.6L/5.4L (Size 0.5) Performance Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-prod-v8-4-6l-5-4l-size-0-5-perfor-t14-271477
Price: 142.71 USD
Availability: BackOrder

$142.71

On Backorder

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King Engine Bearings main bearing set for Ford 4.6L/5.4L V8 engines. Size 0.5. These are performance bearings for demanding builds.

Key Features

Fits 1992-2016 Ford and Lincoln vehicles with 4.6L/5.4L SOHC V8 engines.
Performance main bearing set from King Engine Bearings.
Features Alecular bi-metal material, designed for racing and high-output applications.
Bearings are 0.5 undersize, intended for use with a machined crankshaft.
Built to handle increased stress in performance engine builds.

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Will this fit your vehicle?

Product Details

If you're rebuilding the bottom end of a Ford 4.6L or 5.4L V8, especially for a performance application, you need main bearings that can handle the extra stress. This set from King Engine Bearings is built with their Alecular material, a bi-metal compound designed for racing and high-output engines. They're a solid option when you need more than stock bearings can offer.

These bearings are a 0.5 undersize, meaning they're intended for crankshafts that have been machined down by 0.0005 inches. The Alecular material is a step up from standard bearings, offering improved durability and load capacity for engines that see hard use. King has been making bearings for a long time, and this racing line is a popular choice for builders looking for reliable performance.

This set fits a wide range of Ford vehicles, including popular models like the Crown Victoria, Expedition, and Mustang. Make sure to check the full fitment list to confirm compatibility with your specific application.