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The ACL Race Series main bearing set for GM LT V8 engines (LT1/LT4/L86) in .020 oversize includes an extra lower thrust shell compared to OEM main sets. That allows the option to build a 360-degree thrust assembly or a 180-degree setup using a plain lower shell. These bearings provide a high-performance direct-replacement solution for LT V8 rebuilds needing larger journal sizes.
ACL Chevy V8 LT1/LT4/L86 Race Series .020 Oversized High Performance Main Bearing Set
