No they are using the common rail rocker boxes and covers, if you look on the internet there are pictures of it on the other side showing the FICM mounted. I thought the same at first until I looked around.
EDIT:
Here's the other side.
Well, in IH platform, they don't use a FICM, they call it a IDM, injector driver module. That one there looks to be an all in one unit, PCM/IDM.
The 6.4 Rocker boxes don't bolt to 6.0 heads. Everything on that motor screams 6.4/MF7. rockers, single turbo, front cover, etc. Also there is the hole for injector harness. They are not going to redesign a new harness to Daisy chain the injector harnesses. Navistar is in huge financial trouble, I doubt they are redesigning anything.
Only thing I can think of this is a 6.0 block with 6.4 uppers... But doubtful
I don't know here, but I think it's just a mixed up file picture.
You know who would know? Bulletproof