6.7 Spotted Undergoing Testing.
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Number of cylinders does not mean how refined an engine is. You can't say that a loud, crude running 7.3L V8, is more refined then the quiet smooth running Cummins 6.7?
Plus, it wouldn't be cost effective for a manufacturer to have TWO different diesel engines in the same truck, not to mention a whole new engine would have to be developed as well.
Plus, it wouldn't be cost effective for a manufacturer to have TWO different diesel engines in the same truck, not to mention a whole new engine would have to be developed as well.
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
"Originally Posted by IHpuller450 
you know what i think would be really nice? an option with ford and navistar to pick between a V-8 and an I-6 when you order your truck."
Absolutely, they sell lots of medium trucks and buses with the V8 and many people prefer them.
Stand within 3 feet of an idling DT466/MaxxForceDT and try it beside a 6.4/Maxxforce 7, unless you desire noise and vibration many would very likely choose the V8.
you know what i think would be really nice? an option with ford and navistar to pick between a V-8 and an I-6 when you order your truck."
Absolutely, they sell lots of medium trucks and buses with the V8 and many people prefer them.
Stand within 3 feet of an idling DT466/MaxxForceDT and try it beside a 6.4/Maxxforce 7, unless you desire noise and vibration many would very likely choose the V8.
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
Last time I checked it was 73.6%
New User
Joined: Apr 2008
Posts: 24
Likes: 0
From: Britsh Columbia Canada
In my opinion Ford has made a giant mistake dropping navistar. Now we may end up with years and years of diesel engine problems because ford is just now making its own diesels for this application, yes i know that they produce other size diesels, but hasnt it been proven that the only reason that the 6.0 had trouble was because ford refused to use the electronic specifications Navistar recomended. now im a ford fan and an IH fan and it just breaks my heart that we are loosing the best combination of diesel truck/engine suppliers
--just my two cents.
--just my two cents.
Junior User
Joined: Jul 2006
Posts: 59
Likes: 0
It's not just the electronic specifications, Head Gaskets,Not enough clamping force from the head bolts. To much stretch. How about egr coolers leaking,oil coolers leaking. Turbos sticking, ect ect ect.. I love fords I work on them all the time. But Navistar made a big mistake when they released this engine. And because of that us Ford Guys have been taking a beating for to long..
Yes i agree with you here but wouldnt international design an engine that would work with its electronics, i refuse to belive that they would put an engine into production that wasnt tested to their specifications. also these new diesel engines are all electronicly run, you say turbos sticking well isnt this turbo an electronic varibling turbo? and if the electronics werent correct wouldnt that cause it to stick? i agree with you about the head bolts and the oil coolers, but i dont belive that the entire problem is international or fords fault. and i do know that we have been taking a beating i get razzed by penndot mechanics all the time about them having breakdowns with their 6.0's this problem needs to be fixed and i hope ford and IH work out their diffrences and realize that it is in their best intrest to stay together
Logistics Pro
Joined: Sep 2006
Posts: 4,863
Likes: 4
From: Airdrie Alberta
Turbos sticking is due to either not enough use of the vehicle or exhaust coking on the variable veins, which is just a poor turbo design, international is having the same problems the fords are as far as the head gaskets popping, injectors going out turbos sticking, egrs sticking and failing egr and oil coolers failing, its sad that the design is so flawed, when running good the 6.0's are fantastic powerplants
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
We have both in similar sized units so I consider it a fair comparison, the 2 engines are available in several similar power ranges, and in many of the same trucks. The DT is about a $1800-$2,000 up charge but whats that on a $60,000-$80,000 truck?
Posting Guru
Joined: Jul 2006
Posts: 1,288
Likes: 0
From: Leamington, Ontario
It was a comparison between the currently available, comparable V8 and inline 6 from Navistar, as the prior poster asserted no one would choose a V8 given a choice and was alluding to a Ford/Navistar alliance.
We have both in similar sized units so I consider it a fair comparison, the 2 engines are available in several similar power ranges, and in many of the same trucks. The DT is about a $1800-$2,000 up charge but whats that on a $60,000-$80,000 truck?
We have both in similar sized units so I consider it a fair comparison, the 2 engines are available in several similar power ranges, and in many of the same trucks. The DT is about a $1800-$2,000 up charge but whats that on a $60,000-$80,000 truck?
It's about $1800-$2000 on a $60,000-$80,000 truck.
Sorry I couldn't help myself on that one
Posting Guru
Joined: Jun 2004
Posts: 2,433
Likes: 1
From: Apex, N.C.
When I bought my 03' the DT466 was about a $4500.00 upgrade, must be a regional thing I guess. Also the reason you see so many of the V-8's in buses and trucks belonging municipalities and school etc, is vendors bid to provide vehicles for a set price from different manufactures so they can't really stipulate specs for all different models. Most of the Big Wigs that procure vehicles don't Know anything about ordering buses/trucks anyway. They Just want what is the cheapest. No Doubt both are good engines, but around here most in the private sector just prefer to have the DT in a medium duty truck that is loaded most of the time to the Max GVWR. IMHO...
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
When I bought my 03' the DT466 was about a $4500.00 upgrade, must be a regional thing I guess. Also the reason you see so many of the V-8's in buses and trucks belonging municipalities and school etc, is vendors bid to provide vehicles for a set price from different manufactures so they can't really stipulate specs for all different models. Most of the Big Wigs that procure vehicles don't Know anything about ordering buses/trucks anyway. They Just want what is the cheapest. No Doubt both are good engines, but around here most in the private sector just prefer to have the DT in a medium duty truck that is loaded most of the time to the Max GVWR. IMHO...
If you compare the prices of the engines with identical power ratings I don't believe the differance is over $2,000.