What kind of Bigend shells on A7 Long stroke engine?

[maroon1953]

I have to rent the big end shells of an A7 Long stroke engine. How many different types of shells where used over the period of production of A7 / A10?
Are there different types of "narrow big end shells"?

I would like to know, what kind of shells I should looking for.
May be someone can help with informations.

Michael