Been working on getting this top end together. Was able to mount the cylinder and studs on this, as well as the 46mm Airsal topend on my Monza Barcelona motor.
Interesting note, the studs on this motor are M7 studs, with an M6 center shank. The weird part is that the case threads are M7 coarse, and the head threaded end is fine. I have never seen this, but definitely a great way to avoid having case threads pull out from over torquing.