Is it possible to change a fan cooled engine to liquid cooled engine on a polaris proX 440?

Yes, it is possible to convert a fan-cooled engine to a liquid-cooled engine on a Polaris ProX 440, but it requires significant modifications. This includes acquiring a compatible liquid-cooled engine, installing a radiator, coolant hoses, and a water pump, as well as ensuring proper mounting and integration with the existing systems. Additionally, you may need to adjust the electrical system to accommodate new components. It's a complex process that should be approached with careful planning and expertise.