What does the STDX designation mean for these bearings?

The STDX designation means these main bearings are 0.001 inch undersize. This is important if your engine's crankshaft has been ground undersize during a rebuild to correct wear or runout.

What is the advantage of King's overlay material?

King uses a unique overlay material bonded to a steel backing. This construction is well-built to handle higher loads compared to standard bearings, which is beneficial in rebuilt or performance engines.

Are these bearings suitable for a stock engine rebuild?

Yes, these bearings are suitable for stock engine rebuilds, especially if the crankshaft has been machined undersize. They are also a solid option for engines that will see increased performance demands.

Specifications

Brand: King Engine Bearings
Part #: MB443XPSTDX
UPC: 611500615993

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

Name: King Engine Bearings Buick/Pontiac/Oldsmobile V6 (Size STDX) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-buick-pontiac-oldsmobile-v6-size-stdx--t14-432402
Price: 147.99 USD
Availability: BackOrder

$147.99

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 STDX.

Key Features

Main bearing set for Buick, Pontiac, and Oldsmobile V6 engines.
STDX size indicates a 0.001 inch undersize for crankshafts ground undersize.
Unique overlay material bonded to a steel backing for improved load handling.
Designed for rebuilt or performance engine applications.

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About this part

Product Details

If you're rebuilding the bottom end of your Buick, Pontiac, or Oldsmobile V6, getting the main bearings right is crucial for engine longevity. This set from King Engine Bearings is designed to handle the stresses of a rebuilt or performance engine, ensuring smooth rotation of your crankshaft.

King uses a unique overlay material that's bonded to a steel backing, giving you a well-built bearing that can handle higher loads. The STDX designation means these are 0.001 inch undersize, which is important if your crankshaft has been ground undersize during a rebuild. This precise sizing helps ensure proper oil clearance, which is key for lubrication and preventing premature wear.

When you're putting an engine back together, especially one that's going to see more than just daily driving, using quality bearings like these from King can make a significant difference in how long your build lasts.