I love 6.4's they make me a good amount of money lol.
I've pondered the idea of getting a ford since I've worked on so many 6.0's a d 6.4's. I would pri buy a 6.0 before a 6.4 tho. I like the interior of the 6.4 trucks more tho. I've changed more 6.4 turbos and egr valves than ive ever had to do on any other 2 engines combined. Also had to do total rebuilds on a few with less than 50,000 miles. 1 had a lifter stick and cut the cam lobe up another spun a rod bearing.