So Fiat is releasing an aluminum 6.4 VVT block.
Part numbers are P5160143 and 144.
These come with different levels of machining. Part numbers may not be in the system yet.
Now for the possible really good news.
The famous Drag pak blocks.
Reinforced and offet lifters.
P5160145
P5160146
One has unmachined lifter bores.
I believe the dragpak blocks have extra reinforcement.
Not so good news is that its still to be reviewed by engineering and if it comes out it will be sometime in Feb 2019.
Matt