I would go with a 4 row brass/copper radiator that will bolt in to your radiator support. Do not fall into the aluminum radiator trap that alot of people fall into. Aluminum DOES NOT dissipate heat as well as nice brass/copper rad. I know people will tell you that they are running an aluminum rad, but I bet that they had to cut alot of the core support away to fit the tractor size rad they installed,What does that tell you? The huge 28, and 31" radiators in Mustangs look like crap. A 22" aluminum radiator will cool a 302, or even a 331, but I do not think that it will do anything for a 393. Look at a Be Cool catalog, and the radiators that will bolt in to the core support of a Mustang will tell you that they are for max 350 HP.
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