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2015 Ford Super Duty Receives 6.7L Power Stroke Upgrade

Managing increased horsepower and torque

The horsepower and torque tug-of-war between heavy-duty truck manufacturers rages on with an intensity that could fuel a solid season of reality television. As soon as Ford teased their introduction of the 2015 F-Series Super Duty lineup at the State Fair of Texas, we figured they’d do something to catapult themselves ahead of the game. Although we don’t know all the details, we do know that what Ford has in store for their 2015 lineup will probably put a smile on your face.

We initially read of “engineering improvements [that] boost the performance, capability and durability” of Ford’s 6.7L Power Stroke V8 turbo diesel engine. The biggest detail surrounding this ambiguity is that the second-generation Scorpion 6.7L Power Stroke will receive a larger Garrett GT37 turbocharger, which will replace the Garrett GT32 single sequential turbo (SST), a variable geometry unit which featured twin compressor wheels mounted on a single turbine shaft. The GT37 features a single, larger 88-millimeter (ind/exd: 63.5mm/88mm) compressor wheel with a 72.5mm turbine size, larger than the 64mm of the GT32.

With more airflow resulting in more power, say goodbye to the Super Duty’s 400 horsepower and 800 lb./ft. of torque. Comments Power Stroke technical specialist David Ives, “The original designers of the current Power Stroke V8 diesel forecasted needs for higher output. This facilitated the larger turbocharger, increasing airflow and creating more power.” More power necessitates fuel system improvements. A new high-pressure fuel pump and fuel injectors, along with all-new injector tips, and a new exhaust temperature sensor, can be expected.

Increased horsepower and torque necessitates a handful of enhancements for the Ford Power Stroke including: a new torque converter for the 6R140 TorqShift six-speed transmission; improved crankshaft fillet design; increased crankshaft damper weight; new five-layer head gasket; added material to cylinder heads, exhaust manifold and valvetrain; redesigned turbo oil and cooling lines; piston assembly upgrades; and four-layer exhaust manifold gasket.

2015 Ford F-450
The 2015 Ford F-450 will host a variety of upgrades to bolster performance and improved towing capability, including a strengthened frame, new commercial-grade 19.5-inch wheels and tires, upgraded rear driveline U-joints, new rear leaf springs, front and rear stabilizer bars and shocks, stronger steering gears and steering linkages, larger brakes, and Power Stroke calibration specific to the F-450.

Stay tuned for a full story in Diesel Power Magazine!

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85 comments
Cedrick Desmarchais
Cedrick Desmarchais

hahaha i got a stock 03 with nearly 200k miles running on an xtreme tune. nothing blown yet

John Kolb Jr
John Kolb Jr

ugly cheap looking(interior) will be in the shop cause it breaks.... yep its a pos FORD

Draven Wozny
Draven Wozny

How can a 2015 b out yet or shown by photos its not even 2014 yet?????

Clyde Stuckless
Clyde Stuckless

Just another rotating grenade powered POS. With lots of denied warranty. How people soon forget.

Chase Grippa
Chase Grippa

these trucks are designed by engineers.... why are we arguing. if cummins was the best we would all be driving them. my dads ifs is stompin my solid front end. he's only replaced a tie rod end. in 160k. my super duty has more parts replaced in the front end then I got fingers

Kevin Leparski
Kevin Leparski

no more broken exhaust turbines. should have listened to honeywell in the first place.

Blake White
Blake White

It already had a brake, just not as refined as others some claimed.

Doug Enseleit
Doug Enseleit

I hope that Ford is going to add a engine brake like the other manufacturers did. Apparently it makes quite a big difference.

Blake White
Blake White

These comments are hilarious lol. Really looking forward to this revision, looks very cool.

Brian Blalock
Brian Blalock

Google Dodge Cummins Class Action Lawsuit & Cummins Blown Head gaskets.

Chance Steffens
Chance Steffens

Every truck has their downside, not just Ford. I've seen a few Chevies with their wheels caved in, and they don't make as much power as Ford or Dodge. Dodge has the Cummins, which is probably the best diesel out right now, but a great engine means little when you don't have a transmission that can't back it up. Our new 6.7 Powerstroke didn't have issues until about 120,000 hard miles (hauled heavy loads, daily driver, took it off-roading a lot of weekends when we hunt) I'm surprised it lasted so long, it was beat to hell. But the engine lost compression after about 120,000. Every truck has their downside, but if the owner takes care of them, you won't have problems for a long time.

Mark Shepard
Mark Shepard

Just a suggestion to prevent Drivers from Returning On Foot... Jump in the sack with Cummings & Allison & un-circle the problem on the grille & you might just have yourself a contender! :)

Robert Mc Isaac
Robert Mc Isaac

Ford fu€ked to many customers that put down alot of cash for their overpriced POS and fought those same customers visciously until lawsuits were brought up and the media started to pay attention and report their criminal actions, and now a few years later are we just supposed to forget? I come from an old Ford truck family but now the quality and reliabilty from Chevy/GMC and Dodge is just as good as Ford, if not better. Nissans entry with a 5.0l Cummins V-8 TD will definitely eat into Fords F-150 sales, especially their problematic EcoBoost. Ford customers are living and spending their cash on a past reputation that no longer exists.

Chad Robertson
Chad Robertson

Cummins has not had any where the issues that the power stroke has had.

Derek Renken
Derek Renken

I thought for 6.4L&6.7L powerstroke had a factory twin turbo set up???

Shane Childers
Shane Childers

Sam, Ford never wanted to drop the 7.3..it couldn't pass 2007 emissions.. One thing being lost here to is 6.0 and 6.4 were international motors, their performance issues is what caused ford to build is own motor the 6.7..

Kirby Winters
Kirby Winters

Chevy also comes with IFS under its 4x4 HDs which is a joke smoother ride my ass these new solid axle trucks that ford and dodge are building are better riding than that Torsen bar crap

Wayne Howze
Wayne Howze

I want to share a yard with the company to have a row of 6 liters. You should have heard them things starting up in the morning, sounded like the rods we're coming out the block! I had a 1980 GMC diesel that put them to shame,and they were 25 years newer. In my opinion the best trucks on the road,are the one's people hold on to. Look in the used truck section, the brand with the smallest amount of trucks for sale tells the story.

Jacob Wilson
Jacob Wilson

Me and my cuz bullet proof his 6.0 Justin Miguel Martinez no your right it ain't a good motor at first but its a great all around motor after you put on it what it needs and after that the skys the limit and that was at 140,000 miles and that truck is ran everyday 6 days a week at his hot shot service now that truck currently has 585,000 miles and its running strong

Wayne Howze
Wayne Howze

The reason Ford sells a lot of pickup trucks, they have a loyal following that think they make the best product. Ford making an ass out of these customers selling them junk, and it's pricey. 10 4 has the audacity to not stand behind their product, but offer you a discount on a newer piece of s***

Jerid Adams
Jerid Adams

My dad has a 6.7 and its a tank. Never had any issues with it.

Sam Willard
Sam Willard

Well, it's a step closer to admitting dropping the 7.3 was a mistake. Love my 03.

Jesse White
Jesse White

They're using a Garret gt37 with 63mm compressor? Welcome to 2004, Ford... And Ford obviously knows the short comings of the 6.7 stroke or they wouldn't be beefing up basically the whole engine for 2015.

Terry Flowers
Terry Flowers

1993 F-250 7.3 with a Banks Sidewinder pure bliss, 6.0 ltr hmmmm alcohol and migraine pills and deep pockets is all you need

Shane Childers
Shane Childers

Dodges won't hold up like Fords do, not just mechanically, interiors, power systems, even the damn plastic broke on my ram.. The 6.0 had some issues that's for sure.. Head bolts, gasket and an egr delete their solid engines.. Cummins had more than its share of issues loading up at Idle and seizing injector tops in 2007,2008. Blowing engine oil out the tail pipe! You can blame uncle Sam and the EPA for most of those issues.

Bryan Shaw
Bryan Shaw

Can't wait to swap a powerstroke in my dodge . Said no one ever :)

Steven Narron
Steven Narron

I hope they blow the turbo off just like my (stock) 6.0 did, piece of junk. Selling that piece and buying a Cummins was the best thing I ever did.

David Farlow
David Farlow

Guess I'll have to pay my '11 off a little sooner...

Rick Solis
Rick Solis

I just don't like the looks of the front end. Those goofy upside down lights with the parking light almost bigger than headlight and grill that looks like the buckle off some spoiled rich kids fancy Italian leather shoe just doesn't appeal to me. Be interesting to hear the power numbers though.

Sarah Floyd
Sarah Floyd

aw can barely bread through a farmers fence.. cute

Elaine Byrd-Irwin
Elaine Byrd-Irwin

I hope they crash and burn, after burning all their devoted Ford customers with the 6.0. $22k & counting. And no they won't do crap & yes we can get a whopping 5k of trade in value for a beautiful truck with barely over 100k mikes & no we can't do the upgrades in CA legally, & we owe $12,500 on our credit line still for the piece.

Tyler Karge
Tyler Karge

Onstar is a joke and chevys are junk

Jake W. Burden
Jake W. Burden

@Doug Enseleit this one is going to be using a compression brake the others use an exhaust brake.

Jake W. Burden
Jake W. Burden

@Derek Renken the 6.4 had dual turbos and the 6.7 has dual compressors single turbo setup

Hunter Hampton
Hunter Hampton

@Elaine Byrd-Irwin.  I'm with you. I now have 42,000.00 in a truck worth 18,000.00.  '07 F-350. 

Engine replacement was 14,500.00 it was still under the mileage warranty and one month out of the time warranty. I asked Ford for help and they wouldn't do anything.