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Looks like wrong pistons. V7 sport pistons are 4mm higher.
Curious as to what markings you find near the headstock of the frame.
I mentioned that I was considering a short stroke (bigger bore) engine in my original post.The pistons in the pic are Arias/ Rennsport 89mm forged pistons originally for 78mm cranks bolted to a 70mm ( (V7S crank) and that is why they are 4mm below deck. The next step is to either fit 144mm rods as in Griso/ Stelvio/Norge, or bite the bullet and do a HMB kit with specific pistons. The marking below the headstock is from an impact, but so far, the timing cover and lower rails bolt up OK, the headstock shows no buckling or visible bends and the straight edge is good on either downtube...When the triple trees and a wheel gets mocked up, I hope there will be no surprises . Pic pf the dent below
Should have been more clear... What stamped markings are on the right side of the steering head, if any? My U.S. model, December '72 build date has DGM .....and VK * * - no numbers in between the stars. Euro models will have the frame number between the **CrMo frames are pretty rare...
I don't see a steering stop - is that intact?
The headstock would be for a US model as there are no numbers between the "star" markings. As far as the Chromoly being rare, Beretta ( the Boiler makers, not the gun ones) ran out of CrMo at some point so (thicker wall ) mild steel was used. As actual dates and numbers were not kept in terms of frame steel type, it is hard to say. This frame, however rings differently ( higher pitch) than the T3 one I had in bare form so the possibility is pretty good. Cannot do a weight comparison at this point, but I will soon . Wow, congrats on the frame score! Agreed that there is no clear line between production dates for CrMo/ Mild steel. I would be verrrry careful to preserve those stamped marks on the headstock during the stripping and re-coating.
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