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Discussion Starter · #1 ·
Found this 635cc, engine case on ebay, listed as a 617??? The guy had it advertized as a 1992 617, but the case looked like a newer 670 case. I verified with him, by photo, and e-mail, on what the DATA PLATE said, (76mm x 70mm) 635.3cc, and not (76mm x 68mm) 617cc. Has the top hole on the back of the case.

Does anyone know, what Years, what lenght of Rod it used, HP numbers, or any other info on them? Thanks.

Rich
 
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