Originally Posted by dlgonsalves

Its not as simple as that unfortunatly, you cannot go from sohc to dohc, the pcm has a s**t Fit. Trust me, ive already looked into this for my car. So if he were to get the ej255 or ej257 block, he'd need a stand alone, unless he knows someone who can reflash that to make it work, i've heard nothing about people who can do that, just my knowledge on it.

My car is a bit different because i dont have avcls, if i recall correctly the newer 2.5 i does, but i still cant see going from single to dual with factory pcm.