What size electric fan?

i have an electric water pump on mine and electric fan setup. my setup is from northern radistor, they make a dual fan mounted ti a piece of sheetmetal with buikt in louvers, fits right in perfedt, they offer different sizes to fit your need, when i got mine , i got it from 4secondsflat website you may have to call and ask him but he was good to deal with and had the best prices anywhere, the kit worked great
:D