| Yes.
class a is standard 618 or 583 overbored to 675 using the standard ducati bb kit
class b is standard 583
You get almost nothing extra from the 675 compared to the 583 cos the pistons are absolute shyte.
The 583 cylinder head has valves that are sized for a 350, and it will never develop serious power without valves the size of the 618/750 heads.
Last edited by phil_h : 20-Oct-2006 at 16:51. |