I'm curious about the bell housing on the trannies. I know the MTX-75 and Jatco 5 speed ATX are supposed go with this engine, as well as the Duratec 3L. However, I'm not sure if they finally made it to where they don't have two different versions of the same tranny. The Duratech HE might actually bolt up to the old V6 trannies.
Plus, I think the new I-4 has VVT for both cams, too.