Rather than starting a new thread for something really quite trivial, I'll just stick it here as it may be interesting to some.
My finnie (as mentioned above) has a rebuilt 250S engine which looks very similar to the original (identical rocker cover etc. and it bolted straight down to the same engine mounting points - new mounts of course). I purchased a rusted out 250S and grabbed a few bits and pieces (in addition to the engine) before calling the metal recycling man to take the body away. Amongst those pieces was this interesting engine stabiliser arm which the 220S never came with, but was standard on a 250S. It is for a damper that connects to a bracket at the the front of the block. I bought a new Boge damper to use with it. A perfectly flat mounting area was already there for the arm which looked exactly the same as that in the 250S! The 250S had welded-on threads which the finnie didn't, so when the engine was out last year we drilled some 10mm holes with a view to installing "NutSerts" later on. That turned out to be not a practical idea, so I decided on using standard bolts. Getting the bolts in there yesterday was a bit tricky as access from behind was near-impossible. I used thin copper wire to pull two of the three bolts through and I "just" manged to get my fingers in there to attach a nut for the top one.
Here it is:


Edit:

Did I install that damper upside-down?
Edit:
No. It's right with the damper shaft pointing down.