What does the '+.75mm undersize' designation mean for these bearings?

The '+.75mm undersize' means these bearings are designed to fit crankshaft journals that have been machined down by 0.75mm. This is a common practice when repairing worn or damaged crankshafts to create a clean surface for new bearings.

Are these bearings suitable for high-performance or racing engines?

These bearings are designed for medium-load engines and are made from a bi-metal aluminum composite. While well-built, they are not specifically intended for extreme racing applications where specialized, heavy-duty bearings might be required.

What is the benefit of the lead-free composite material?

The lead-free composite material is an environmentally safe choice. It's part of King Engine Bearings' commitment to offering quality bearings while considering environmental impact.

King Engine Bearings Ford 415 (Size +.75) Connecting Rod Bearing Set

Specifications

Brand: King Engine Bearings
Part #: CR1039SI0.75
UPC: 611500431135

King Engine Bearings Ford 415 (Size +.75) Connecting Rod Bearing Set

Name: King Engine Bearings Ford 415 (Size +.75) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-415-size-75-connecting-rod-bearin-t14-367388
Price: 41.10 USD
Availability: BackOrder

$41.10

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 CR1039SI0.75 connecting rod bearing set. +.75mm undersize. For Ford 415 engines.

Key Features

Fits a range of Ford vehicles including E-350 Super Duty, Excursion, and F-250 Super Duty models.
This set is +.75mm undersize, intended for use with crankshaft journals machined down by 0.75mm.
Constructed from a bi-metal aluminum material for reliable performance.
Features a lead-free composite material, making it an environmentally safe choice.
Designed for medium-load engines where extreme racing conditions are not a factor.
From King Engine Bearings, specialists in engine bearings since 1960.

⚠️ 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

Built with a lead-free, bi-metal aluminum composite, these King Engine Bearings are a solid option for medium-load Ford 415 engines. This set is specifically sized at +.75mm undersize, meaning it's designed to be used when the crankshaft journals have been machined down by 0.75mm to clean up wear or damage. As bearing specialists since 1960, King focuses on creating high-quality engine bearings, and this set is no exception.

This set fits a range of Ford vehicles, including models like the Ford E-350 Super Duty, Ford Excursion, and Ford F-250 Super Duty. The lead-free composite material is an environmentally safe choice, and the bi-metal aluminum construction offers good performance for engines that aren't under extreme racing conditions. If you're rebuilding or repairing a Ford 415 engine and need a reliable bearing set that's been machined to a specific undersize, this is a well-built choice.