What vehicles do these main bearings fit?

These main bearings are designed for General Motors 265 and 301 cubic inch 16-valve engines. They fit a variety of vehicles from model years like 1977-1981, including Buick, Oldsmobile, and Pontiac models.

What does the 'AM-Series' designation mean?

The 'AM-Series' designation from King Engine Bearings refers to their advanced bimetal construction. This type of bearing uses an aluminum-based alloy, offering a good combination of strength and wear resistance for engine applications.

Are these bearings a standard size?

No, these main bearings are 0.010 inches undersize. This means they are intended for use with a crankshaft that has been machined down by 0.010 inches to match this bearing size.

Specifications

Brand: King Engine Bearings
Part #: MB5517AM010
UPC: 611500197215

King Engine Bearings General Motors 265 / 301 16V AM-Series Main Bearings (Set of 5)

Name: King Engine Bearings General Motors 265 / 301 16V AM-Series Main Bearings (Set of 5)
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-265-301-16v-am-series-m-t14-507012
Price: 83.99 USD
Availability: BackOrder

$83.99

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King Engine Bearings AM-Series Main Bearings for GM 265/301 16V engines. This set of 5 bearings is built with a bimetal aluminum base for reliable engine performance.

Key Features

Fits 16+ vehicle make/model combinations.
Includes a set of 5 AM-Series main bearings.
Designed for General Motors 265 and 301 cubic inch 16-valve engines.
Features a bimetal construction with an aluminum base.
Bearings are 0.010 inches undersize.

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About this part

Product Details

When you're rebuilding the bottom end of your engine, a solid set of main bearings is crucial for keeping everything running smoothly. This set from King Engine Bearings includes five AM-Series main bearings, specifically designed for General Motors 265 and 301 cubic inch 16-valve engines. These bearings are constructed with a bimetal design, featuring an aluminum base, which helps ensure reliable performance and durability for your engine rebuild.

The AM-Series bearings are a well-built option for a variety of GM vehicles from the late 70s and early 80s, including models like the Buick Regal, Oldsmobile Delta 88, and Pontiac Firebird. The 'AM' designation refers to their advanced bimetal construction, offering a good balance of strength and wear resistance. This set is precisely sized at 0.010 inches undersize, which is important to note if you are machining your crankshaft to match.