another 360/408 over heating

Personally, I wouldn’t recommend using a flex fan to anyone, these fans have repeatedly been responsible for vehicle damage and worse still, serious personal injury.
They are a ticking time bomb - DO NOT USE!
Been using them for 10 years on 4 different cars, no problems ever. A metal fan will do some serious damage to your hand a flex fan won't do as much. The only problem I have with them is the engine runs 5 degrees cooler than the thermostat.