I think this is a short block with no heads. I assume this is an N63 special which is good news for people who may need this someday.

https://parts.bmwofsouthatlanta.com/...002296771.html

For comparison, this is what the same short block is for the X5 M S63. https://parts.bmwofsouthatlanta.com/...002296764.html

And finally the N62 https://parts.bmwofsouthatlanta.com/...000439114.html

__________________
2009 35d, 2006 325i & 330i