What does '+0.25mm undersize' mean for these bearings?

This means the bearings are manufactured to be 0.25mm smaller in diameter than standard size. They are intended for use when the crankshaft journals have been machined down by 0.25mm to correct wear or damage.

What is the construction of these bearings?

These bearings utilize a tri-metal construction. This typically involves a steel backing for strength, an intermediate layer for load-bearing capacity, and a tin-based overlay for a smooth running surface.

Are these bearings sold individually or as a set?

This product is a set of connecting rod bearings, which is standard for engine rebuilds as you'll need a set for all connecting rods.

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Specifications

Brand: King Engine Bearings
Part #: CR1241SI0.25
UPC: 611500426483

King Engine Bearings Ford 415 (Size +0.25mm) Connecting Rod Bearing Set

Name: King Engine Bearings Ford 415 (Size +0.25mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-415-size-0-25mm-connecting-rod-be-t14-769412
Price: 29.95 USD
Availability: BackOrder

$29.95

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King Engine Bearings Ford 415 (+0.25mm) Connecting Rod Bearing Set. A well-built bearing set for engine rebuilds.

Key Features

This is a +0.25mm undersize connecting rod bearing set.
Features a tri-metal construction for durability and performance.
Designed for Ford 415 engine applications.
Part number CR1241SI0.25.

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About this part

Product Details

King Engine Bearings is known for making solid engine bearings, and this set of connecting rod bearings is no exception. This specific set, part number CR1241SI0.25, is designed for Ford 415 applications and is sized +0.25mm undersize. If you're rebuilding an engine and need to machine your crankshaft journals, these bearings are made to fit those journals precisely.

These bearings feature a tri-metal construction, which is a popular choice for performance and durability. The tin-based overlay provides a smooth surface that works well with crankshafts, while the intermediate layer offers strength and the steel backing ensures a solid foundation. This combination helps manage oil flow and reduce friction, crucial for keeping your engine running smoothly under load.