Size: 6AN Male to 5/16" Male (we also have 6AN/8AN Male x 3/8" Male). Fitting Type: Quick Disconnect. For GM LSX 5/16" quick disconnect factory fuel rails (LS1, LS2, LS6, LS3, etc. Our EFI fitting has a 37 degree flare fitting taper to ensure a tight seal and ease of operation. ).
