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Power Strokes
6.7 Tech
6.7 reliability
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[QUOTE="ghohouston, post: 1552476, member: 9421"] Up pipes crack when they aren't replaced with a different style that has a provision removed on 6.4's. Head gaskets like stated, rocker arms, lifters, etc. I'd go with a 6.7 over a 6.4 in a heartbeat. I do however have a guy whose trucks I work on, and he has 2 6.4s that have really suprised me. Both of them have over 200k, both missing things, and both get worked daily, and he hasn't had many major problems other than up pipes on both, and one truck did blow head gaskets though. [/QUOTE]
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