Ok so I am currently in the process of buying a chevy 406 small block for my yj. I was wondering if anybody knows what the best radiator choice would be and what the dimensions are? It used to have the 2.5L in it and now has a chevy 4.3L from a blazer. The 4.3 radiator will not keep a 406 cool. Im looking for the best radiator that will keep it cool and will fit in my jeep .