Swapping short hair on a Mattel?

Long hair figures tend to have their hair glued into the figure, but does anyone know of a good way to swap a short hair head sculpt? I know the hair is molded onto the head in those instances. Just curious if anyone has attempted.

I have a long hair figure that I'd like to remove the hair from and attempt to put a short hair on, but I'm not sure how to even attempt to go about it without cutting up the short hair figure and essential scalping it.

Any thoughts, hints, experiences?

Thanks guys!