Do a Google search for Lincoln Mark VII electric fans - a
real high capacity electric fan. Also look at the home page
of
www.fordmuscle.com for a good article detailing install of a Taurus V6 fan, incl controls, relay, etc.
Thing is, you need a 130 amp alternator.
Do a search for that, too, there's a bunch of good how-to's on that out there.