My uncle has a 6.0l and yes it had to have all the updates but it is a good motor since then lots of power etc... but I had a 2002 7.3 4x4 and it had over 670,000 Kms on it when I sold it and it is still running strong to date. My friend baught it off me and he has owned it for 3 years now. He had one problem about 5 months after i sold it and it was the injector pump he changed it out and runs like a dream
