Galant transmission

I need to know if a 3.0 V6 can be easily swapped for a 2.4 4 cylinder. I've been told the mounting brackets should line up, but I need some more input if anyone has it. The car has 115k miles on it and still runs strong, but my son now drives it and wants more power. We thought of putting on a turbo, but if the V6 can be swapped out, that would be easier to do. Also, if anyone knows of a good place to get a car kit for the side moldings, he wants that too.

Thanks