Beta replacement - some other things that may need replacing
1) you will also need to either replace or modify your fuel tank as the diesel engine requires a return line to the tank
2) cooling water thruhull - may need a larger one
3) prop shaft and prop
4) engine controls
You may find this thread over on the Ericson forum of interest.
https://ericsonyachts.org/ie/threads...-2#post-136791
Best,
Peter