What does the '1.0' size designation mean for these bearings?

The '1.0' in the part number MB443SI010 indicates that these are main bearings that 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 account for wear or to achieve specific clearances.

What is the overlay material used on these bearings?

King Engine Bearings utilizes a high-performance overlay material on these bearings. This material is chosen for its durability and its ability to withstand the significant loads and stresses experienced by the crankshaft during engine operation.

Are these bearings suitable for a performance engine build?

Yes, King Engine Bearings are known for their robust construction and high-performance overlay. They are a popular choice for engine rebuilds, including those aiming for improved durability and reliability.

King Engine Bearings Main Bearing Set MB443SI010

Name: King Engine Bearings Buick/Pontiac/Oldsmobile V6 (Size 1.0) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-buick-pontiac-oldsmobile-v6-size-1-0-m-t14-432397
Price: 64.96 USD
Availability: BackOrder

King Engine Bearings Buick/Pontiac/Oldsmobile V6 (Size 1.0) Main Bearing Set

$64.96

On Backorder

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

King Engine Bearings main bearing set for Buick, Pontiac, and Oldsmobile V6 engines. Size 1.0.

Key Features

This is a 0.010 inch undersize main bearing set.
Features King Engine Bearings' high-performance overlay material for improved durability.
Designed for Buick, Pontiac, and Oldsmobile V6 engines.
Supports the crankshaft and ensures smooth rotation.

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Product Details

These main bearings are 0.010 inches undersize, meaning they are designed to be used with crankshafts that have been machined down by that amount. This is a common practice when rebuilding an engine to bring worn bearing surfaces back into spec. King Engine Bearings uses a high-performance overlay material that's known for its durability and ability to handle the stresses of engine operation. They're a solid option for anyone rebuilding a Buick, Pontiac, or Oldsmobile V6 engine and looking for reliable internal components.

When you're putting an engine back together, the main bearings are critical for supporting the crankshaft and ensuring it spins smoothly. King's design focuses on providing a strong, well-built bearing surface that can handle the load. This particular set is sized at 1.0, which corresponds to 0.010 inches undersize, so make sure your crankshaft has been machined to match this size. Using the correct bearing size is essential for proper oil clearance and long-term engine health.