Just how noisy are the Durale flex fans as compared to the steel bladed fans. I have a 57 with very little room between the radiator and water pump. I manage to get the stock 4-bladed fan on after some modification to it but its noisy. I tried a nylon fan but sounded like I had a siren mounted on the engine
If a stock 4 blade fan is too noisy for you I'm pretty sure you will not find any fan mechanical or electric that will be any quieter. Your choice but I wouldn't use a flex fan of any brand for anything other than a lawn ornament. Metal can only bend so many times before it breaks and lookout when it lets a razor blade go flying.
Last edited by TheHotrodHandyman; 05-07-2020 at 10:12 AM..