I have a 2004 F150 FX4 is it possible to swap out the stock 5.4L with a 2003 or 2004 lightning engine? Or is there a supercharger for the 2004 5.4L?

 

I'm pretty sure there is a supercharger for an 04 F150 5.4L. If not give it another month or two. ATI makes a great supercharger for the money. Its intercooled for the around the same price as a vortec that isnt intercooled.