Compression Ignition Addict
Join Date: May 2012
Location: Cheyenne, WY
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Considering a new truck...6.0L vs. 6.4L
So my kids are older now and the wife no longer uses the Excursion as a daily driver, so I was thinking that it may be time to sell it and go back to looking for my dream rig. So I am very familiar with a 6.0L and what it takes to make them reliable and to build power with one. I am fairly ignorant on the 6.4's as far as any problems they have had, reliability of the high pressure fuel system, and the power potential of the truck. I see a lot of people talking about 150-300+ HP tunes, but I don't know how that effects the durability of the truck. I have a little experience with a 6.4, my dad bought a '08 F550 with a ZF6 transmission new in the fall of '08. He went through 2 injectors by 60K, and 2 HPFP between 100K-120K miles. The first HPFP may been due to subpar filters, he just used what ever Carquest sold. I don't work for him any longer, so I no longer perform his maintenance. He isn't a mechanic, nor does he want to be. He just didn't realize how sensitive these newer diesels can be. I don't know if it matters on the 6.4L, but I know on the factory 6.0L fuel system it is Racor or nothing when it comes to fuel filters. But back on track that is my only experience with a 6.4L.
On to the truck:
I want to purchase either a 2005-07 6.0L or 2008-10 6.4L F350 4x4 CCLB Dually.
Fully loaded Lariat package (sunroof, tow command, power rear slider, clearance lights, etc.).
My goals for either truck will be to put down around 5-600HP at the wheels that is actually usable for towing. I know this isn't a new concept for either truck. I am starting to lean towards a 6.4L because it would save me a lot of retro fit work to a '05-'07 truck to get it the way I want. I also really prefer the '08-'10 interiors. My biggest hesitation is the CR injection system. Between my father's problems (self induced or not) and all of the problems I have seen with other CR engines (VW TDI), I am not sure I want to gamble on one. Though I already have two gasoline CR vehicles ('13 F150 EB, '14 Focus ST EB) so what is one more right?
I would appreciate someone to point me in a direction to common problems with the 6.4L and what it takes to "Bullet Proof" one beyond studs. As I didn't see any stickies like we have in the 6.0L area here on the forums. Sorry for the long post.
2003 6.0L PSD Excursion Limited 4x4
Edge Insight CTS w/Dash Pod, EGT, TT, Back Up Camera
AMSOIL with REV-X
AMSOIL Bypass Oil Kit
GDS Fuel Spring
Diesel Site Coolant and Transmission Filters