I heard that when you do and engine conversion the car takes on the insurance group of the engine's donor car, or something like that.
So for example if you have an old hot hatch that is a group 15 insurance and you put in a newer more powerful engine from a group 12 car, does the insurance go up that much?
So for example if you have an old hot hatch that is a group 15 insurance and you put in a newer more powerful engine from a group 12 car, does the insurance go up that much?