If you are using a 10S17F or 10S20F A/C compressor on your LS engine, these adapters are what you need. These adapters will help you to install 10S17F or 10S20F compressor on your LS engine swap that have the truck accessories like the LQ4, LQ9 and most other truck 4.8, 5.3 and 6.0 engines。.
