bought a 70 lemans a few months ago and been doing a few things on it, previous owner had a alum radiator installed and a new water pump with a 5 blade fan. I had a 69 bird with the 350 and I seem to remember the fan filled the shroud more this fan does,fan is about 15 in in diameter and there is what I think room for a bigger fan, would someone with the 350 factory fan please measure the fan diameter for me? I was thinking of getting a stock one if its bigger. thanks