Made the duct to seal the radiator to the trunk floor.It was mentioned to add a tilt tot he radiator so it fills and is more efficient, thank you Bruce, I hadn't given it any thought and probably would not have thought of it. This is he rough opening sealed with pipe foam, slit and slid over/against the edge. I still have to do more cutting back on the front edge (top of pic) to fit the shroud, then I'll glue the foam seal in.
This is the angled duct.
Duct in place.
Duct in and sealed.
And the radiator on the sealed duct ready to be bolted/clipped down.
I was thinking of using springs to hold the radiator in place. That way the radiator could float a little above the seal and not have any strain in it.
Mark L