Hi, does anyone have a 67 GS radiator for a 400 engine? I am looking for a 4 row radiator, but if all you have 3 row , I can take that as well. I have had trouble finding it on eBay for some reason, guess they are hard to find. My overall dimensions are around 18 3/8" by around 28", but all I've found are 18 3/8" by 33"?? Thanks!