The ACL Race Series main bearing set for GM LT V8 engines (LT1/LT4/L86) in .010 oversize includes an additional lower thrust shell beyond the OEM set, offering flexibility to assemble a 360-degree thrust or 180-degree thrust configuration depending on installation choice. This set is provided for high-performance rebuilds requiring larger journal sizing.
ACL Chevy V8 LT1/LT4/L86 Race Series .010 Oversized High Performance Main Bearing Set