What does the '.040' size designation mean for these bearings?

The '.040' indicates that these main bearings are 0.040 inch undersize compared to standard size. This is used when the engine's crankshaft journals have been machined down by 0.040 inches during an engine rebuild.

What type of material are these bearings made from?

These bearings are constructed from a high-performance tri-metal material. This type of material is known for its strength and wear resistance, making it suitable for demanding engine applications.

Are these bearings suitable for a stock engine rebuild?

Yes, these bearings are a well-built option for stock engine rebuilds, especially for GM 262, 302, 327, and 350 V8 engines. Their tri-metal construction provides reliable crankshaft support.

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Specifications

Brand: King Engine Bearings
Part #: MB5184SI040
UPC: 611500523359

King Engine Bearings GM 262/302/327/350 (Size .040) Main Bearing Set

Name: King Engine Bearings GM 262/302/327/350 (Size .040) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-262-302-327-350-size-040-main-beari-t14-520749
Price: 63.63 USD
Availability: BackOrder

$63.63

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King Engine Bearings GM 262/302/327/350 (Size .040) Main Bearing Set. These main bearings are 0.040 inch undersize for engine rebuilding.

Key Features

This set is 0.040 inch undersize.
Features a high-performance tri-metal material for durability.
Designed for GM 262, 302, 327, and 350 cubic inch V8 engines.
Offers reliable support for the crankshaft's rotating assembly.

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About this part

Product Details

These King Engine Bearings main bearings are built with a high-performance tri-metal material, offering a solid foundation for your GM engine rebuild. Specifically, this set is machined to be 0.040 inch undersize, which is crucial when you're dealing with crankshafts that have been ground down to match this size during a rebuild. They are designed for GM engines displacing 262, 302, 327, and 350 cubic inches, covering a wide range of popular V8 applications.

The tri-metal construction is known for its excellent load-carrying capabilities and wear resistance, making it a popular choice for engines that see regular use or are being built for improved performance. King focuses on creating bearings that fit right and perform reliably, ensuring your engine's rotating assembly stays properly supported. This set is a well-built option for anyone looking to replace worn main bearings or install new ones during an engine overhaul.