Check the listing for details. For LS Engine Motor Mounts LS Swap Kit LS Conversion Adapter Plates LS1 LS3 LS2. Condition: New. Listed at 25.90 USD. Item Description: 4 adjustable positions- Allows you to fine tune your engine placement. These are the 4 most desirable positions to accommodate the widest variety of headers, oil pans, steering boxes, and so on: 1st Position: Places for your LS engine in the stock SBC/BBC location. 2nd Position: Places for your LS engine forward 7/16 from the original SBC/BBC location. 3rd Position: Places for your LS engine forward 1 3/4 from the original SBC/BBC location. 4th Position: Places for your LS engine 2-1/4 forward from the original SBC/BBC location. Features: This engine mounts swap kit fits for Chevrolet. This adapter plates are CNC milled from Billet aluminum to provide the most accurate plates. Accepts factory SBC/BBC motor mounts or factory clamshells. This adapter plates have a necess.