Pretty in Pink, dunno why
Join Date: Feb 2009
Location: Redondo Beach
The 600 had a 96mm bore and a 78mm stroke.
It looks like they bored and stroked it to 100X83 to get to 650. And that's assuming they DID save the case and do a bore and stroke and didn't just start over from scratch, dunno.
I would surmise that the crank, piston, and barrel are different. The head might be interchangeable, but may have a smaller squish area.
To make the 600 into a 650 you'd have to replace everything from the crank up.
I would guess that everything from the crank up is going to be problematic. The bottom end stuff may be interchangeable.
Tom [email protected]
“I lit a cigarette and dragged a smoking stand beside the chair. The minutes went by on tiptoe, with their fingers to their lips.”
'How' are words so important they cannot be too often used.”
Sting like a butterfly.