ACL Race Series Main Bearing Set for GM LS Gen III–IV V8, Standard Size, 5M7298HX-STD

GM LS Gen III - IV main bearing set 270 degree oil groove - extra .025mm / 0.001" oil clearance

The ACL Race Series main bearing set is designed for GM LS Gen III and Gen IV V8 engines, including popular 4.8L, 5.3L, 5.7L, and 6.0L applications. This standard-size bearing set features a 270-degree oil groove configuration and is engineered for performance-oriented engine builds that require dependable crankshaft support and consistent lubrication.

ACL part number 5M7298HX-STD incorporates an additional 0.001 inch of oil clearance to help support demanding operating conditions. The bearing design promotes stable oil distribution around the crankshaft journals while helping maintain reliable performance under increased engine loads. It is intended for applications using standard-size main bearing journals and should be matched to the crankshaft specifications during engine assembly.

Manufactured for automotive engine rebuilding and performance applications, this ACL bearing set provides a precise fit when installed according to the engine manufacturer’s specifications. Always inspect the crankshaft, confirm journal measurements, verify bearing clearances, and follow proper assembly procedures before installation. This set is supplied for GM LS Gen III–IV V8 applications and is not a substitute for confirming exact engine and crankshaft compatibility.

What's Included: One ACL Race Series standard-size main bearing set for compatible GM LS Gen III–IV V8 engines.

Fitment: Designed for select GM LS Gen III–IV 4.8L, 5.3L, 5.7L, and 6.0L V8 engines. Verify exact vehicle, engine, crankshaft, and bearing clearance requirements before purchase.

Features:

• Application: Designed for GM LS Gen III–IV V8 engine platforms, including select 4.8L, 5.3L, 5.7L, and 6.0L applications.
• Oil Groove Design: Uses a 270-degree oil groove configuration to support consistent lubrication around the main bearing journals.
• Oil Clearance: Provides an additional 0.001 inch of oil clearance for performance-oriented engine builds and demanding operating conditions.
• Bearing Series: ACL Race Series construction is intended for automotive engine rebuilding and high-performance applications.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1