belt sprocket will match the shaft, but shaft is longer and there is a different (longer) spacer used.
But it will not work !!!
Think about the clutch pushrod of the earlier engines.
There is no space to fit the pushrod and the front belt pulley.
It might be possible to swap the clutch actuator to the one that is used at the BD-models (swap clutch engine cover and some more and internal parts).
E.g. you will need the drive shaft cover of a BD to close the hole which is used for the pushrod.
Here is a pic how it looks like at a BD-model: