I wanted to put a twin cam turbo ej20 head on my 1.8 liter. I am in the process of turbo charging it and I figured that I would get better gains if I put on a much better flowing head. Will the head cylinders line up, will the timing belt fit all my preexisting accessories? What manifolds will fit. When I swap can I temporarily use my 1.8 manifolds until I get some wrx exhaust and intake manifolds or will I have to put the new ones on with the new head?
Any info would help.