2017 6.7l engine differences
Its Comin Right for us!
Joined: Feb 2005
Posts: 12,116
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From: GA
Yeah, Kubota...thanks for reposting. I started both those threads and I'm still questioning what is really "new." Yes, different intake, a few things here and there...but what I'm curious about is the "guts." For example, was the CP4 pump revised any further from the 2015 revision? Is the turbo actually different? Are the injectors actually different? Any changes to the block, pistons, con rods, crank, pushrods, valves, heads, cooling system, etc? That's what I'm really after.
i think we will find out for sure over the next year,
as tuning progresses and people start blowing them up
i have more trouble searching here, the engine doesnt take anything less than 4 letter words
Senior User
Joined: Mar 2014
Posts: 102
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Yeah, Kubota...thanks for reposting. I started both those threads and I'm still questioning what is really "new." Yes, different intake, a few things here and there...but what I'm curious about is the "guts." For example, was the CP4 pump revised any further from the 2015 revision? Is the turbo actually different? Are the injectors actually different? Any changes to the block, pistons, con rods, crank, pushrods, valves, heads, cooling system, etc? That's what I'm really after.
The larger turbo, injectors and HPFP were all introduced in the 2015 Gen 2 6.7
There are very small differences between a 2016 and 2017 engine.
2017 turbo has a internal oil drain now (otherwise same specs as 2015-2016 turbos)
Same HPFP as 2016 and below
New turbo pedestal
2017 has different rods to accommodate larger wrist pins
New water pump
New oil cooler
New engine mounts
Posting Guru
Joined: Aug 2015
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"site:ford-trucks.com" in the search. You can also click "tools" on Google and limit the search time window to the past week, month, etc.
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Junior User
Joined: Nov 2016
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Thanks! I will try that
Posting Guru
Joined: Apr 2006
Posts: 2,216
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I posted above
The larger turbo, injectors and HPFP were all introduced in the 2015 Gen 2 6.7
There are very small differences between a 2016 and 2017 engine.
2017 turbo has a internal oil drain now (otherwise same specs as 2015-2016 turbos)
Same HPFP as 2016 and below
New turbo pedestal
2017 has different rods to accommodate larger wrist pins
New water pump
New oil cooler
New engine mounts
The larger turbo, injectors and HPFP were all introduced in the 2015 Gen 2 6.7
There are very small differences between a 2016 and 2017 engine.
2017 turbo has a internal oil drain now (otherwise same specs as 2015-2016 turbos)
Same HPFP as 2016 and below
New turbo pedestal
2017 has different rods to accommodate larger wrist pins
New water pump
New oil cooler
New engine mounts
The 15 and 16 have different rods, wrist pins and pistons, block ect than the 2014 and older.
I'd like to read some of these specs.
Hotshot
Joined: Apr 2013
Posts: 10,106
Likes: 643
From: NH
I posted above
The larger turbo, injectors and HPFP were all introduced in the 2015 Gen 2 6.7
There are very small differences between a 2016 and 2017 engine.
2017 turbo has a internal oil drain now (otherwise same specs as 2015-2016 turbos)
Same HPFP as 2016 and below
New turbo pedestal
2017 has different rods to accommodate larger wrist pins
New water pump
New oil cooler
New engine mounts
The larger turbo, injectors and HPFP were all introduced in the 2015 Gen 2 6.7
There are very small differences between a 2016 and 2017 engine.
2017 turbo has a internal oil drain now (otherwise same specs as 2015-2016 turbos)
Same HPFP as 2016 and below
New turbo pedestal
2017 has different rods to accommodate larger wrist pins
New water pump
New oil cooler
New engine mounts
The 6.7L Power Stroke initially employed a unique single sequential turbocharger (SST) which features a dual compressor and single turbine setup affixed to a common shaft. The unit was replaced by a single Garrett GT37 variable geometry turbocharger (VGT) for the 2015 model year, subsequently increasing horsepower and torque in combination with additional upgrades. The SST returned to the Power Stroke for the completely revised 2017 model year Super Duty; torque reached an all time high at 925 lb-ft.
So maybe they are wrong, but it seems I've heard other info that states the turbo is different as well. When you state "new water pump," I ask "which one?" There are two. When you say the oil cooler is new, I say maybe. From laying under both my 2016 and 2017, the oil coolers appear to be utterly identical. Now, the transmission cooler is new and different. Perhaps that is what you are referring to.
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Senior User
Joined: Nov 2014
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From: CT
What we need is a revision to the 6.7L Coffee Table book that documents the changes for MY2017. Short of that, I'd say it is all conjecture. The only documented change to the oil cooler was the elimination of the "hidden" stud on the back that required the removal of the lower oil pan to access. I also doubt the SST was brought back since Ford was unable to generate enough volume with the SST on the 11-14 MY trucks which resulted in a lack of power at altitude and very little exhaust braking. GM caught onto that and made a series of videos demonstrating all the ways that the turbo was inadequate as well as the "twist ditch" demonstration displaying the open c vs fully boxed frame disadvantages(a little bit of Fords own medicine as I recall Tundra vs F150...)
Hotshot
Joined: Apr 2013
Posts: 10,106
Likes: 643
From: NH
I agree - I want the coffee table book! And I'm not defending PowerstrokeHub's assertion that the turbo is new. I recall exactly what you say - less power at high altitude and less exhaust braking. Perhaps they found some way to overcome that. Or perhaps PSM 6.4 is correct that the turbo is basically the same one as the 440/860 engine. The oil cooler stud was removed pretty early on (maybe 2012) as was the plastic oil pan with the quarter-turn oil drain. Oddly, the 2.7L EcoBoost engines in the F-150 have the plastic pan and quarter turn plug, so not sure what was so wrong with that on the Super Duty.
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