Hi all. Don't know who might be interested, but I mounted a 26 inch radiator on my Challenger's 22 inch radiator support without any cutting or welding. I did this by making an adaptor plate for the passenger side. I used 16 gauge stock from Lowe's. Attached are the measurements and pics of the adaptor in place.
I used JB Weld to attach the bolts for the 26 inch rad mounting holes (cannot get a wrench on the head of the lower bolt after installation). Primed and painted black....
22 to 26 inch radiator conversion with no cutting/welding...