What does '0.030 inch undersize' mean for these main bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 0.030 inches. This is a common practice during engine rebuilds when the crankshaft journals have wear or damage and need to be re-ground to a smaller diameter.

What other parts are typically needed when replacing main bearings?

When replacing main bearings, it's standard practice to also replace the connecting rod bearings (also known as 'rod bearings'). You'll also need new engine oil and an oil filter, and often a new oil pump and timing set for a complete engine overhaul.

Do these bearings come with new main bolts?

This set includes the main bearings only. New main bearing cap bolts or studs are typically recommended for engine rebuilds, as they are often torque-to-yield or require specific stretching during installation. These would need to be purchased separately.

Clevite Main Bearing Set MS2022A30 - Buick V6 231-231 Superc

Name: Clevite Buick V6 231-231 Supercharged 1995-2004 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-buick-v6-231-231-supercharged-1995-2004-main-bearing-set-t14-57898
Price: 55.76 USD
Availability: BackOrder

Clevite Buick V6 231-231 Supercharged 1995-2004 Main Bearing Set

$55.76

On Backorder

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

Clevite main bearing set for Buick V6 231-231 Supercharged engines. Essential for engine rebuilds to ensure proper crankshaft support.

Key Features

Fits 1995-2004 Buick V6 231-231 Supercharged engines.
This is a 0.030 inch undersize main bearing set.
Designed to support the crankshaft and maintain oil pressure.
Built with multi-layer bearing material for durability.
Compatible with a wide range of GM vehicles from the 1990s and early 2000s.
Essential component for engine rebuilding and repair.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

If you're rebuilding the engine in your Buick V6 231-231 Supercharged, or another compatible GM vehicle from the mid-90s to mid-2000s, a fresh set of main bearings is crucial. These bearings sit between the crankshaft and the engine block, supporting the crankshaft's rotation and handling the immense forces generated during combustion. Worn main bearings can lead to excessive crankshaft movement, oil pressure loss, and ultimately, catastrophic engine failure.

This main bearing set from Clevite is built with their standard materials and manufacturing processes, offering a solid option for restoring your engine's health. They are designed to meet or exceed original equipment specifications, ensuring a proper fit and function. The bearings feature a multi-layer bearing material with a steel backing for strength and a bronze-aluminum overlay for smooth operation against the crankshaft. This particular set is 0.030 inch undersize, meaning it's intended for crankshafts that have been machined down by 0.030 inches during an engine rebuild.

This set fits a wide range of vehicles, including popular models like the Buick LeSabre, Pontiac Grand Prix, and Chevrolet Camaro. Always confirm fitment for your specific year and model, and ensure your crankshaft has been machined to the correct undersize if using this set.