What does it mean that these bearings are 0.50mm undersize?

This means the bearings are manufactured to be slightly smaller than standard size. They are intended for use with a crankshaft that has been machined down by 0.50mm to ensure proper fit and oil clearance during an engine rebuild.

What vehicles does this specific ACL bearing set fit?

This set is designed for 4-cylinder Holden/Opel engines found in the 1999-2002 Daewoo Leganza, 1999-2002 Daewoo Nubira, and 2005-2007 Suzuki Reno.

Are these bearings suitable for a daily driver?

While well-built for performance, these are part of ACL's racing series. They are best suited for engines being rebuilt for performance or track use where precise oil clearances and robust construction are prioritized.

Specifications

Brand: ACL
Part #: 5M2327H-.50

ACL Holden/Opel 4 Cylinder 1.6/1.8/2.0/2.2L Main racing Series Bearings

Name: ACL Holden/Opel 4 Cylinder 1.6/1.8/2.0/2.2L Main racing Series Bearings
Brand: ACL
SKU: acl-acl-holden-opel-4-cylinder-1-6-1-8-2-0-2-2l-main-racing-series-bearings-t14-797378
Price: 144.58 USD
Availability: BackOrder

$144.58

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Fits 1999-2002 Daewoo Leganza. ACL Holden/Opel 4 Cylinder 1.6/1.8/2.0/2.2L Main racing Series Bearings.

Key Features

Fits 1999-2002 Daewoo Leganza, 1999-2002 Daewoo Nubira, and 2005-2007 Suzuki Reno.
ACL Racing Series main bearings.
Designed for 4 cylinder Holden/Opel engines with 1.6L, 1.8L, 2.0L, or 2.2L displacement.
These bearings are 0.50mm undersize.
Well-built for performance applications.

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About this part

Product Details

This ACL racing series main bearing set is built for performance. They are 0.50mm undersize, meaning they are designed to be used with a crankshaft that has been machined down by 0.50mm. This is a common practice in engine rebuilding to clean up bearing surfaces and ensure a fresh mating surface for new bearings. These bearings are a solid option if you're rebuilding an engine for spirited driving or track use, and you've already had the crankshaft measured and machined to the correct undersize.

When rebuilding an engine, using the correct size bearings is critical for proper oil clearance and engine longevity. Always confirm your crankshaft has been machined to the appropriate undersize before ordering bearings.