What does 'Standard Size' mean for these bearings?

Standard size bearings are designed to fit a crankshaft that is at its original factory dimensions. If your crankshaft has been machined undersize due to wear or repair, you would need a different size bearing set.

What is the advantage of a bimetal aluminum base construction?

Bimetal construction, often using an aluminum alloy base, offers a good balance of strength, conformability, and embeddability. This helps the bearing handle loads effectively while also being able to absorb minor imperfections in the crankshaft surface.

Are these bearings suitable for a daily driver or only performance builds?

While designed for performance applications, the solid construction and materials make them a reliable choice for any engine rebuild where durability and proper lubrication are key. They are a well-built option for both performance and standard engine overhauls.

King Engine Bearings BMW M10B15/18/20 (Size STD) Performance Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB544AM
UPC: 611500167102

King Engine Bearings BMW M10B15/18/20 (Size STD) Performance Main Bearing Set

Name: King Engine Bearings BMW M10B15/18/20 (Size STD) Performance Main Bearing Set
Brand: King Engine Bearings
Price: 107.37 USD
Availability: InStock

$107.37

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King Engine Bearings MB544AM Performance Main Bearing Set for BMW M10 engines. Standard size, bimetal construction.

Key Features

Fits 1961-1985 BMW models with M10B15, M10B18, and M10B20 engines.
Standard size bearings for use with a factory-spec or unmachined crankshaft.
Constructed with a bimetal aluminum base for good load handling.
Designed for performance applications in BMW M10 engines.

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Product Details

King Engine Bearings is known for making solid engine components, and this Performance Main Bearing Set is a great example. If you're rebuilding the bottom end of your BMW M10 engine, these bearings are designed to handle the job. They are a standard size, meaning they're meant to be used with a crankshaft that hasn't been machined undersize.

These main bearings are constructed with a bimetal, aluminum-based material. This type of construction is chosen for its ability to handle load and wear well in performance applications. They fit a range of classic BMW models, including the 2002, 318i, and 320i, making them a popular choice for enthusiasts working on these engines.