Parts manuals tell different part numbers for the early engines.
As you can see on the first picture the number visible on the box is 111101351 while the number on the head 111101371 is.
Numbers mentioned are:
- 111101351 Cylinder head up to Engine number 1-695 281 (1131cc)
- 111101351A Cylinder head from Engine number 1-695 282 (1192cc)
