The Denso 10SxxF compressors are normally found on LS1 style engines that have the truck accessories like the LQ4, LQ9 and most other truck 4.8, 5.3 and 6.0 engines. If you have or want to use the Denso 10S17F or 10S20F AC compressor on your LS engine swap, these adapters are what you need!  These convert the stock ac compressor to #8 and #10 O-ring fittings. Made of cast zinc coated steel. Bolts and seals included.

* Even though it has the 10S17F model number on it, the compressor that comes with the Chevy Performance Serpentine Kit will not work with these adapters without modification.  The factory truck compressors do not have this issue.