aluminum radiator opinions!! and tire size questions

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so ive been building a frame off 72 long bed factory 402 im doing everything suspention and performance wise so that its as comfortable as possible without it being non factory so im wanting to run an aluminum radiator with electric fans was wondering what brands anybody has had good luck with on direct fit in the original 4 core radiator brackets and has performed well. also ive got 3inches of drop in the front and 3 inches of drop in the rear for now got new 18 inch wheels coming i was wondering what size of tires should i run as far as hight goes to not be rubber band tires but still be pretty street rod looking thanks!!