This 2004 Ford SVT Lightning originally came with a supercharged 5.4 L Triton V8 and 4R100 four-speed automatic transmission. It is now powered by a supercharged 5.0 L Coyote V8 from a 2020 Roush Mustang thanks to Texas SpeedLab & Performance. The motor features a 2650 supercharger, Power by the Hour accessory drive, BBK longtube headers, and 3-inch stainless steel exhaust. The supercharged motor is kept fed by a Fore Innovations fuel system and set of ID1050X injectors. Texas SpeedLab & Performance also installed a 10R80 10-speed automatic transmission which presumably sends power to the factory Eaton Detroit Locker rear differential.
Source: Texas Speedlab & Performance