the radiator is mounted in all stock holes that were on the upper and lower core supports.
on the upper core support the holes were just a hair smaller than 1/4" so I just opened them up to 1/4",
and for now I have a 1/4" bolt with washers but I am going to make the proper alum spacers for it.

then the lower plate is a piece of alum that I bent into a 90* piece and bolted it to the holes in the lower pan then drilled it and the radiator and bolted them together.

the only thing that I had to modify was on the driver side there is a raise area the made the radiator stick out towards the back of the car so I cut a small area out of it to make it set flat.(see the picture below)
If you did not want to cut anything all you would have to do is make the spacers a little longer(around 1 1/2").Ron...

the cut area is to the left side in this picture..