Holley has finished development on the ultimate swap solution for the 7.3-liter Gas PFI V8 Engine: accessory drive kits with a new oil pump and pan that allow this engine to find its way into more platforms than the factory oiling setup allows (including the Fox Body). As is standard with our accessory drive kits, choose from the full kit or the base kit for custom applications (alternator, air conditioning, and power steering options). This coupler is a service part as it is included in the following kits: 20-320, 20-320BK, 20-340, and 20-340BK and cannot be used independently.