Peter, I'll snap a pic next time I'm there. meant to do that today but forgot.
Thanks Mike. Here's a pic of a 24v engine. I could be interested in the valve cover with the oil cap (opposite the intake plenum). If they look like the same part, I can take the one I have by my mechanic's shop to compare up close on his 12v 164 engine. Don't run over there just for this bit tho.