What does the .020 inch undersize mean for these bearings?

The .020 inch undersize specification indicates that these bearings are designed to fit a crankshaft that has had its main journals machined down by 0.020 inches. This is common during engine rebuilds to correct for wear or damage on the crankshaft.

Are these bearings suitable for all GM V8 engines?

These main bearings are specifically designed for GM 262, 302, 327, and 350 cubic inch V8 engines. It's important to verify your specific engine displacement to ensure compatibility.

What is the advantage of the overlay material used on these bearings?

The overlay material is chosen for its durability and ability to withstand the operational stresses within an engine. This helps ensure consistent performance and longevity for the bearings.

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Specifications

Brand: King Engine Bearings
Part #: MB5184SI020
UPC: 611500523335

King Engine Bearings GM 262/302/327/350 (Size .020) Main Bearing Set

Name: King Engine Bearings GM 262/302/327/350 (Size .020) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-262-302-327-350-size-020-main-beari-t14-520747
Price: 60.01 USD
Availability: BackOrder

$60.01

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King Engine Bearings GM 262/302/327/350 (Size .020) Main Bearing Set. These bearings are .020 inch undersize for a specific engine rebuild.

Key Features

Main bearing set is .020 inch undersize.
Designed for GM 262, 302, 327, and 350 cubic inch engines.
Features a durable overlay material for reliable performance.
Crucial for engine rebuilds with machined crankshaft journals.

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About this part

Product Details

These King Engine Bearings main bearings are built .020 inch undersize, a critical measurement for engine rebuilds where the crankshaft journals have been machined down to correct for wear or damage. This specific sizing ensures a proper fit and oil clearance when working with a prepared crankshaft. They are designed for a range of popular GM V8 engines, including the 262, 302, 327, and the widely used 350 cubic inch small blocks.

King Engine Bearings uses a high-performance overlay material on these bearings, which is known for its durability and ability to handle the stresses of engine operation. The .020 inch undersize specification means they are intended for use with a crankshaft that has been turned down by that amount. Proper installation is key; ensure your crankshaft journals are clean and within the specified tolerance for this bearing set to achieve the correct oil film thickness, which is vital for engine longevity.