Grooved crank Journal on Alfa 164 3.0 24v

[227bhp]

Yes it's immaterial if you aren't re-using it. The relevant number on the shell is 11754 btw, it references to 60568883 which is the part number needed to re-order.
What the others mean I have no idea and they aren't relevant, I fancied 'CL' which is usually in a diamond shaped symbol is for Clevite, but not sure.

[Gussiegtv]

Thanks again 227BHP,I'm learning a lot here so asking the forum has been brilliant even if it wasn't all good news! The more information the better. Hopefully my other engine will be better. Finger's crossed!