Rad help with 67 dart .

Ccas said
I agree on everything except you kind of glanced over how the 26" radiator doesn't fit. ;) Modifying that radiator support to accept a 26" radiator and also take advantage of all 26" of core air flow is a decent amount of fabrication work.

True. But I got my *** reamed for bitching about drilling some holes in my core support that I didn't want to drill.

If you are fairly handy, you can install the 26 inch radiator in a 22 inch core support.