I know someone that is selling this radiator. I know its to long but does anyone have a solution to fit the in a Comet? It a summit rad part number SUM-380428 just incase the link dont work. http://store.summitracing.com/partdetail.asp?autofilter=1&part=SUM-380428&N=700+0&autoview=sku
26x19 is the widest thing you can fit between the frame rails, and that usually requires notching the crossmember and trimming the core support so it will set down in there. I don't see how you could fit anything wider in there.
What Matt said I have a 19x26 in mine and I had to trim the crossmember. Anything wider and you will need to cut into the frame (what little there is) to make it fit.
It has to be away. I thought I measures a hair more than 26 inch from framerail to framerail. Do framerails move any during driving?