Lots of people looking for cooling solutions for their cars. I have been using the fan below for some time on my 67 331 stroker and it works great. I can’t be sure of the air flow claim but it moves a lot of air and only pulls 18 amps DC both fans together which is less than the item says. I don’t know the person selling this fan but have bought several items over the years without problems. The price is very reasonable. I mounted my with some 1" aluminum angle on the sides and 3/4" alum angle on the top and bottom to box it in and make it so it has no give in the middle. It is bolted to the radiator only on the sides where the shroud would bolt on.
Dual 11" Electric Radiator Cooling Fan Extreme Twin HD | eBay