My car had a two-row when I bought it, there also was much larger spacing between the cooling fins, I'd have to guess it was for a Mustang 6 cyl. It wouldn't keep the stock 289 cool. After some minor engine performance mods it was no good at all. Right now I have three row, 20" radiator, correct filler plates, flex fan and mostly complete shroud. the car runs at 190 deg. except when stopped in traffic, or at illegally high speeds:evil: I plan to replace the shroud and maybe change the thermostat before next summer.