ACL
ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
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ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IVACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IVACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IVACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IVACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV
ACL

ACL Race Series .10mm Oversized Main Bearing Set — Fits GM LS Gen III/IV

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SKU: ACL5M7298H-10

About ACL ACL engineers high-quality automotive parts and accessories trusted ...Read more

Price:
$247.99 $317.14
2470 ENTRIES10X

Backordered — usually ships in 15–30 business days

Not in stock right now. We order it from the manufacturer and email you if the date changes.

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

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About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

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ACL Race Series Main Bearings for GM LS Engines

When your GM LS crankshaft requires a .10mm (.010") undersize, the ACL Race Series Main Bearing Set is the professional choice for your build. Designed for Gen III and Gen IV LS engines, these bearings are built to handle the heat and stress of high-performance applications. Featuring a 270-degree oil groove, they ensure consistent oil pressure and lubrication to your main journals.

Why Choose ACL Race Series?

  • High-Load Durability: Constructed with advanced materials to resist fatigue in high-RPM environments.
  • Precision Engineering: .10mm undersize provides the exact clearance needed for machined crankshafts.
  • Enhanced Oil Flow: The 270-degree groove design optimizes oil distribution throughout the engine.
  • Wide Vehicle Fitment: Compatible with various GM trucks, SUVs, and performance cars using LS-based engines.

Building a high-performance engine requires components that won't fail under pressure. These ACL main bearings are designed to provide the stability and protection your engine's rotating assembly needs to perform at its best. Whether you are restoring a classic truck or building a high-horsepower street machine, you can count on these bearings for reliability and performance. Upgrade your engine today with quality parts from GGCRACING.

…and 145 additional fitments. Contact us to confirm yours.

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACL Race Series Main Bearings for GM LS Engines

When your GM LS crankshaft requires a .10mm (.010") undersize, the ACL Race Series Main Bearing Set is the professional choice for your build. Designed for Gen III and Gen IV LS engines, these bearings are built to handle the heat and stress of high-performance applications. Featuring a 270-degree oil groove, they ensure consistent oil pressure and lubrication to your main journals.

Why Choose ACL Race Series?

  • High-Load Durability: Constructed with advanced materials to resist fatigue in high-RPM environments.
  • Precision Engineering: .10mm undersize provides the exact clearance needed for machined crankshafts.
  • Enhanced Oil Flow: The 270-degree groove design optimizes oil distribution throughout the engine.
  • Wide Vehicle Fitment: Compatible with various GM trucks, SUVs, and performance cars using LS-based engines.

Building a high-performance engine requires components that won't fail under pressure. These ACL main bearings are designed to provide the stability and protection your engine's rotating assembly needs to perform at its best. Whether you are restoring a classic truck or building a high-horsepower street machine, you can count on these bearings for reliability and performance. Upgrade your engine today with quality parts from GGCRACING.

…and 145 additional fitments. Contact us to confirm yours.

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