Move engine back

What’s the distance from the core to the serpentine set up?

Is it just the fan motors that hit stuff? I run a serpentine on my 340 with my Ford contour fan set up.

It is a combo of the width of the shroud @ 3/4” and the fan housings.
The radiator is dual 1 1/4 tubes cross flow. I will probably look into mounting the fans in front of the 26”radiator. If that does not work then it’s time to look into a different radiator that has a thinner core