904 converter missmatch

I almost a little bit ashame, lol.
When thinking some more about it i figured that because i have an 70´s engine block they must have put in a crank earlier then -68, and why would they do that?
So after looking closer at the engine (my father looked earlier and mesured the hole to 40mm) , i found out that it is the new crank with the 46mm aligment hole, they just have made a spacer down to 40mm and pressed in.

So now im back on track, but thanks for all help so far, good to get some year info on the hub sizes etc..