I知 currently rebuilding my 2004 discovery 2 motor. Right now I知 stuck on which motor would be the best to put into my car. I think the one with the O ring might be newer but I知 worried about the uneven wear.






The one that is in the car right now only worries me because there is no serial number and when I was taking it apart the engine was really dirty.

 

Why not do a LS swap. I have rebuilt my 4.0 3 times now. It痴 just not worth the headache.