Came back to the thread to look for something and saw your post.
It should be an option that anyone can install or have installed. It's replacing a threaded plug in the engine block with a hot water style heating element. This video shows one going into a Ford diesel. A gas engine would...
Because I like to see documentation - From the 22 Manual (pages 234 and 235):
ENGINE BLOCK HEATER (IF
EQUIPPED)
ENGINE BLOCK HEATER
PRECAUTIONS
WARNING: Failure to follow engine
block heater instructions could result in
property damage or serious personal
injury.
WARNING: Do not use your...
Look at the build week 11/1 thread and the tracker sheet there.
https://www.f150gen14.com/forum/threads/11-1-2021-build-club.5724/post-127892
Some of the subsequent build weeks are also doing this tracking.
I understood that you can make changes until the vehicle was scheduled and given a VIN. It seems odd that not having a VIN and not being able to change, regardless of priority, are tied together. Perhaps someone else can answer this. I ordered a 22 two months ago, so cannot answer your...