E30 Zone

Just been checking over my 320i lump im hopefully selling, and noticed as well as the 1 277 731 there is also another number towards the front of the head marked as 07 02.
When I originally purchased the donor car for my ill-fated touring transplant, the previous owner mentioned a head change, but didnt have any paperwork (everything but that bill unfortunatley - history file as long as my arm, but I digress)
So, for those that may know, does this denote a head cast in July 2002?? (thus backing up his claim) or, should I stop taking these tablets the doctor has me on

No. Its not a date mark, I think it is a "Die/Cast/Mould number".

There is a date mark on the heads. on my old head, 325i, it is above inlet ports 1-2. It is a circle that contains the year in the middle, and the month is shown as raised dots.

Thanks - that answers that one then!!
Cheers