Brownguy3617

Hi can I take a 99 2.2 block and put the heads and intake ect.from a 03 2.5 or possibly the 03 2.5 block with heads intake ect. From the 99 2.2

I just picked up a 03 legacy L (AT) that Needs a motor well the guy kept the ej25 with the harness that sits on top of motor.. now I have a 99 legacy gt (MT) with a ej22 I looked at the wiring on the 2.2 the main 3 plugs coming out of the firewall are different can I just get a harness from the local junkyard from another 03 and plug and play or are plugs ends going to be different thank u for looking at my problem. P.s I am not switching the Trans. just motor both motors are SOHC and look exactly the same except for the three plugs that come from firewall to top of engine