If u have to change radiators, I would recommend a GRIFFIN CROSSFLOW. I have a28x19 in my 68 fastback 440/505 , it has more room then u say u do in urs. If I had to do it over, I`d go one size wider , even to the point of notching the frame side flaps a little .
I didn`t even trim the cradle out to expose the tanks, the core is the same width as the stock form. S opening at 22" wide. Have often wondered wheather trimming the opening to expose the tanks would be beneficial and how much------
Make sure ur rad. is somewhat sealed to the cradle , so air wont go between them. I would be real surprised if u couldn`t find a mech fan that would fit !
