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The ACL Race Series main bearing set for GM LS Gen III/IV engines in .020 oversize includes a 120-degree oil groove and is supplied for .50mm / 0.020" undersize journal requirements. These bearings are intended for LS builds that demand increased clearance and retain the oil groove configuration to support oiling and bearing durability in modified or refreshed engines.
ACL Chevy V8 LS Gen III/IV .020 Oversized Main Bearing Set
