What does the +0.75mm size mean for these bearings?

The +0.75mm designation indicates that these bearings are designed to fit a crankshaft that has been machined down by 0.75mm. This is common during engine rebuilds when the original crankshaft journals have been worn or damaged and need to be re-ground to a larger size.

What is trimetal construction?

Trimetal bearings are made from three layers: a steel backing for strength, a copper-lead alloy for load-carrying capacity, and a soft overlay (often aluminum-tin) for conformability and embeddability. This construction offers good durability and performance for engine bearing applications.

Are these bearings sold individually or as a set?

This product is a connecting rod bearing set, meaning it includes the necessary bearings to replace all the connecting rod bearings on your engine. Typically, an engine set includes enough bearings for all connecting rods.

Specifications

Brand: King Engine Bearings
Part #: CR819CP0.75
UPC: 611500119941

King Engine Bearings General Motors 250/273/300 16V (Size +0.75mm) Connecting Rod Bearing Set

Name: King Engine Bearings General Motors 250/273/300 16V (Size +0.75mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-250-273-300-16v-size-0--t14-770196
Price: 70.22 USD
Availability: BackOrder

$70.22

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King Engine Bearings connecting rod bearing set for GM 250/273/300 16V engines. Size +0.75mm. Verified fitment.

Key Features

Fits General Motors 250, 273, and 300 16-valve engines.
This is a +0.75mm undersize bearing set, intended for use with a crankshaft that has been machined to this specification.
Constructed with a trimetal material for durability and performance.
Designed for connecting rod applications.

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About this part

Product Details

Built with a trimetal construction, these King Engine Bearings connecting rod bearings are designed for General Motors 250, 273, and 300 16-valve engines. This set is specifically sized at +0.75mm, which is crucial when rebuilding or refreshing an engine that has had its crankshaft ground down to accommodate larger bearings. The trimetal design offers a strong, reliable surface that handles the pressures and heat generated by the connecting rod's rotation against the crankshaft.

These bearings are a solid option for anyone working on a variety of GM vehicles from the early 80s through the mid-90s, including models like the Cadillac DeVille, Eldorado, and Fleetwood. When you're rebuilding an engine, especially one that's seen some miles or is being modified, ensuring your bearings are the correct size and made from durable materials is key to a long-lasting rebuild. This set provides that essential component for proper engine function.