What does the '.030' size mean for these main bearings?

The '.030' indicates that these bearings are 0.030 inches smaller in diameter than standard size. This is used when the engine's crankshaft has been machined down by 0.030 inches to correct wear or damage.

What is the advantage of King Engine Bearings' overlay material?

King Engine Bearings uses a specialized overlay material that is formulated to withstand the high pressures and friction within an engine's bottom end, especially in rebuilt or performance applications.

What is the primary function of main bearings in an engine?

Main bearings support the crankshaft within the engine block. They ensure the crankshaft spins smoothly and maintain the correct oil clearance, which is vital for lubrication and preventing excessive wear.

Specifications

Brand: King Engine Bearings
Part #: MB5184SI030
UPC: 611500523342

King Engine Bearings GM 262/302/327/350 (Size .030) Main Bearing Set

Name: King Engine Bearings GM 262/302/327/350 (Size .030) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-gm-262-302-327-350-size-030-main-beari-t14-520748
Price: 60.01 USD
Availability: BackOrder

$60.01

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Key Features

This is a main bearing set for GM 262, 302, 327, and 350 cubic inch V8 engines.
The bearings are 0.030 inches undersize, intended for use with a crankshaft machined to this specification.
Features King Engine Bearings' specialized overlay material for durability.
Helps ensure proper crankshaft alignment and oil clearance during engine rebuilds.

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About this part

Product Details

When you're rebuilding the bottom end of your GM engine, getting the main bearings right is crucial for long-term health. This set from King Engine Bearings is specifically made for GM 262, 302, 327, and 350 cubic inch V8 engines, and it's sized 0.030 inches undersize. Proper main bearings align the crankshaft correctly, ensuring it spins smoothly and efficiently within the block.

King Engine Bearings uses a specialized overlay material that's designed to handle the pressures and friction found in performance and rebuilt engines. This particular set features a 0.030 inch undersize, which is important if your crankshaft has been machined down to this size during a rebuild to clean up wear or damage. Using the correct undersize bearing is key to achieving the proper oil clearance and ensuring the crankshaft is supported correctly.

Make sure to check your crankshaft's specifications to confirm it has been machined to a 0.030 inch undersize before ordering this set. Proper installation, including cleaning and correct oil clearances, is essential for the longevity of your engine rebuild.