About to buy 2005 6.0
#11
The 6.4 and 6.0 share the same head design... just food for thought.
#13
Unforutnatley cracking/melting pistons is quite the common issue among commonrail owners, haven't heard too much about this on the 6.4's though... interesting. The headgasket issues on the 6.4 seem to be pointing more towards backpressure issues, not just timing/boost issues like on a 6.0. 6.4 is definitely a stout motor, no doubt about it. 1000+hp on stock bottom ends is impressive!
#14
#17
I disagree there. I'm sure you're seeing 10x more 6.4's than 6.0's right now, but so is every tech. You'll naturally see more of a vehicle in for repair when they're still under warranty. To my knowledge the 03 6.0 was Ford's #1 most expensive warranty repair of any year/model ever.
The heads are exactly the same on the 6.4 as late model 6.0's, and people with stock 6.0's crack heads all the time too. They seem to crack a ton of valve guides too. I wouldn't say they're 10x worse than a 6.0. JMO!
The heads are exactly the same on the 6.4 as late model 6.0's, and people with stock 6.0's crack heads all the time too. They seem to crack a ton of valve guides too. I wouldn't say they're 10x worse than a 6.0. JMO!
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