Engine serial number

[shibbs]

Can anyone on here shed some light on something that confused me a little this afternoon... (yes i know It's not hard )

Whilst fiddling around under and around the back of the engine this afternoon starting a service / general check over etc, i noticed that my Mercruiser Aplha one V8,...
has a Volvo Penta tally on the block

I meant to take a pic of it but forgot, will do next time i'm down there.

Any ideas anyone?

[mlines]

Alpha one refers to the stern drive not the engine.

Both Volvo and mercruiser early V8 engines have the same heritage in a small block Chevy V8 so it is possible some mix and match can happen.

[shibbs]

Nothing to worry about then, thanks for the info!

[Ianfs]

That'll be a first for me, I've never seen a Volvo engine matched to a Mercruiser Stern Drive and visa versa. From your pictures you have got an Alpha One and it looks like a Gen 11.
What's a Volvo penta tally? Do you mean a bill of some kind?
It could be that a Volvo part or parts have been used at some stage where Mercruiser parts were not available. They share some similarities.
Photos would be good.