Absolutely min things to swap Gonna need a battery of some kind 3 phase induction motor (probably) Motor speed controller Some sort of battery charger Big inverter for big motor An ecu-like thing to control everything Specifics about how to make this all work in a vehicle will depend wildly on which vehicle. Some basically can have these things bolted on, others require special assemblies to get the power to the wheels somehow.

An ev swap can be (relatively) cheap and simple or wildly expensive and difficult just depends on your goals.

Most of the parts I mentioned are available as off the shelf components and sometimes even as a swap kit.