Howell is not currently building motors anymore. That is where I purchased my 2.2 from. Definately go the 3.55 route as far as the transmission. I have the quaife and it seems as though they are stopping production on this items too.(modern performance) So I would suggest you have a local machine shop build your motor with your pieced together pistons and rods. I haven't heard any indication of a clutch set-up yet, do you have any plans for that area?