[HoosierDaddy]

I've considered the same thing. A squirrel cage blower moves a LOT of air and is much quieter than a fan type blower. One method of noise reduction is to require the cooling air to follow a circuitous path to the engine and through the radiator. This minimizes the engine sound from emanating from the "engine room". It also requires much more air flow/pressure. 120V is readily available for this need and allows for a much higher fan torque load.