greasmonkey; check J.C. Whitney. They have rads, as well as Jegs and Summitt. I would rather go with the latter two.
If you want a bolt in specific they(Griffin) can make you one and have a part number, it takes a couple weeks. Be prepared to pay for it. Also they can add an electric fan but in my application the electric fan would not fit between their installed bracket and the waterpump. A electric fan will fit if you flush mount it right to the radiator with the straps thru the core which I did not do because I had the brackets welded on originally and they were in the way and I also could not get myself to run retaining straps thru the fins of my my new rad. You will need to call them and talk out the details if you want a tranny cooler or not and verify these part numbers I am giving you. Part 7-270BU-FXX for up to 400HP 7-570BU-FAX For up to 600HP with cooler 7-570BU-FXX For up to 600HP no cooler They can build/ship it cheaper than getting it thru summit or jegs as its special order for this specific part for those 2 parts houses. It will still cost over 400 from Griffin. Or as mentioned above you can get a generic type and make it fit your car and that works too and much cheaper!! I wanted a factory stlye bolt in that looked right, fit without any modifications, and I paid the price for that too!!
GRI-7-570BU-FXX is the direct replacement part number... it just needs a tranny cooler. your looking at over 5bills though. people also make a 4 core using your stock tanks and rails. its much cheaper but it also can clog if you don't take care of it.
Contact Bob Gribble at MuscleMotorSports. He will beat anybodys price on Griffin radiators by a good margine. Shipping is only $10 from him. www.musclemotorsports.com
http://cgi.ebay.com/ebaymotors/AFCO-80100FN-LW-Aluminum-Radiator-Ford-bb-sb-sbf-19x22 I got mine off of ebay, see above link. Seems to fit alright and was only $180. Needs a separate tranny cooler though. I got it because others on this board recommended it.