naguethey:
I have viewed all the pictures you've posted. The engine is an early vin numbered diecast as the clutch cover has ten screw holes were as sandcast cases have nine. The motor does have the earlier style head with out center bolt and early four cable type carbs. It looks like the oil tank has been modified to give the bike a cleaner more stream line look. The complete front end looks to be from a Honda CB360. Also the rear wheel is not original to this bike. Marty K.