Nissan Patrol 3.0 t/d engine replaced with 4.2 t/d engine?

Gday,

Very new to internet and this site.

I have blown my 2000 model 3.0 t/diesel engine big time.

What I want to know is can I buy a 4.2 t/d engine and replace the 3.0 litre?

I did see some other site yesterday where someone had done this with minimal problems but have lost the site.

Does anyone know anyone who has done it or can any advice be given in doing this? Can it be done?

All help & advice is appreciated.
Cheers,
Andrew.