That is the new Arias LS hemi heads/BDS blower with EFI on a 468 cid smallblock.
The drive is the (WDP) dual prop but in its bpm type setup as a single shaft/trim only. It will have the skeg removed and be center rudder.
We have one less set of gears compared to a #6 and they are all spur so the efficiency is MUCH better and everything is drysump. That is including the offset box.
Depending on the hull configuration I would remove the offset box and just run straight into the drive. The offset box is from one of our inline packages or a cat style installation.
pat W:USA: