What does the '020' in the part number mean?

The '020' indicates that this main bearing set is 0.020 inch undersize. This means the bearings are designed to fit a crankshaft that has been machined down by 0.020 inches, typically done during an engine rebuild to correct wear or achieve specific clearances.

Are these bearings suitable for a stock, unmachined crankshaft?

No, this specific bearing set is 0.020 inch undersize and is intended for use with a crankshaft that has been machined down by that amount. Using undersize bearings on a standard-size crankshaft will result in excessive oil clearance and improper engine function.

What is the primary function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They create a low-friction surface that allows the crankshaft to rotate smoothly while maintaining critical oil clearance, which is essential for lubrication and preventing metal-on-metal contact.

Specifications

Brand: King Engine Bearings
Part #: MB5881SI020
UPC: 611500629020

King Engine Bearings Ford Godzilla 7.3L Main Bearing Set - (Size 020)

Name: King Engine Bearings Ford Godzilla 7.3L Main Bearing Set - (Size 020)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-godzilla-7-3l-main-bearing-set-si-t14-703837
Price: 102.27 USD
Availability: BackOrder

$102.27

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 Ford Godzilla 7.3L Main Bearing Set - (Size 020). These bearings are 0.020 inch undersize for a precise fit during engine rebuilds.

Key Features

Main bearing set for Ford Godzilla 7.3L engines.
This set is 0.020 inch undersize, intended for use with a machined crankshaft.
Features King's high-performance overlay material for reduced friction and wear.
Well-built backing supports the overlay for durability.
Supports proper oil clearance for smooth crankshaft rotation.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

These King Engine Bearings main bearings are built to a 0.020 inch undersize specification, crucial for engines that have had their crankshaft journals machined down during a rebuild. They are specifically made for the Ford Godzilla 7.3L engine, ensuring they meet the unique demands of this powerful V8. When you're rebuilding the bottom end of your Godzilla, the main bearings are a critical component that supports the crankshaft, allowing it to spin smoothly and efficiently. Using bearings that are precisely sized for your machined crankshaft is key to proper oil clearance and long-term engine health.

King Engine Bearings uses a high-performance overlay material that's designed to withstand the pressures and temperatures found in modern engines. This overlay, combined with a strong backing, helps to reduce friction and wear, which is essential for maintaining oil pressure and preventing premature engine failure. The 0.020 inch undersize means these bearings are intended for a crankshaft that has been ground down by 0.020 inches to correct imperfections or to achieve a specific clearance. It's important to confirm your crankshaft journal measurements before ordering to ensure you get the correct bearing size for your build.