Ford 6.4L diesel replacement!

[RobJ]

6 con rods on an I-6 would each naturally be larger than 8 con rods on a V-8, so would the pistons. I don't really get much out of all that hype about bigger con rods. I've seen plenty of windowed Cummins diesels. However, I do like the simplicity of an I-6 over a V-8.

/QUOTE]


Agree...

 

[RobJ]

the above statement is the reason I purchased an 07 5.9 dodge cummins. While shopping for a new truck I raised the hood of new 6.7 said holly ****, closed it, the salesman asked why I did not want to test drive it .. I was a Ford mechanic for over 10 years, late 1970's - 1990 I had no desire to own that thing.. The whole DPF deal is what prompted me to buy a new truck in the first place...

Wasn't 07 the cutoff? I think the 08 Dodge has the DPF. Wasn't the 6.4l an 08 release? The days of a bare bone diesel are over...tractors to. Lawnmowers are next, electric more effecient than a little Briggs or Honda.

My big beef is the cost, I guess this new motor will now be a $10,000 option. For the average Joe like me, do a little hauling, tow a few times a year. It ain't worth it. With the mileage of the 6.4, the gassers are not that far away now from the folks I've talked to. Add insult to injury is the higher cost of diesel.

 

[john_bud]

On the radio the other day a car program was talking about a new Dodge 1/2 ton wtih an improved Hemi that was supposed to get 25 mpg on the freeway and have 390 Hp.

With variable displacement and variable cam timing the gas engines are able to make more power and equal or exceed the best (empty load) economy of diesel engines. So, unless you are always towing, why spend the extra $$? I know my next truck won't have a diesel engine unless they majorly change things in the next 8-10 years!

 

[JESSE1]

That's my biggest beef with Ford. They can't settle on an engine.

I agree, I don't like it they can't settle on one design and be able to modify it to meet changing emission standards. The 6.0 did last for 5 years and the 6.4 will be around for at least 3. I was very satisfied with my '04 6.0 and the '08 6.4 I have now puts the 6.0 to shame in performance and smooth operation. I have no doubts that Ford and Navistar will provide parts support for both engines for a long time.

Is the Duramax the exact same engine now that it was when it was introduced? The displacement is the same, but how many components can be swapped from the current year to the first year?

Is the Cummins the exact same engine now (I know its a 6.7 now) as it was when it was introduced?

 

[gemini5362]

I agree, I don't like it they can't settle on one design and be able to modify it to meet changing emission standards. The 6.0 did last for 5 years and the 6.4 will be around for at least 3. I was very satisfied with my '04 6.0 and the '08 6.4 I have now puts the 6.0 to shame in performance and smooth operation. I have no doubts that Ford and Navistar will provide parts support for both engines for a long time.

Is the Duramax the exact same engine now that it was when it was introduced? The displacement is the same, but how many components can be swapped from the current year to the first year?

Is the Cummins the exact same engine now (I know its a 6.7 now) as it was when it was introduced?

The duramax has gone through some changes with the biggest one being the heads in the late 2004 models. they moved the injectors outside of the valve covers. If you have an injector crack you wont have diesel being sprayed into the lubricating oil. In 2006 they made a few changes. The injectors used to screw into a pressed in fitting in the head. Now they screw directly into the head. Also the connecting rods were beefed up I believe. They also increased fuel injection pressure. Also the 2006 they went to a variable vane turbo.

The big factor for chevrolet has not been the engine although it seems to be holding up pretty well. The allyson is a big selling factor. That is why I bought one. Everything I have read seems to indicate that is one of the strongest transmissions on the market today. If you stay with a stock duramax it will last for a very long time.

 

[gemini5362]

How about the oil pan, any scratches??

Seriously, when I'm driving I try and avoid all Diesel trucks as well as all the other vehicles on the road.

I wished all other drivers had your attitude especially in parking lots. Twice now I have had drivers backing out of a parking lot and cut to sharp and hit my truck right behind the fender well. 1 on each side of the truck. It is a big vehicle. I dont see how it can be that hard to not see. They manage however. Of course all of these drivers cannot write since they dont leave a note. Luckily for me if i file a police report it changes the type of accident for the insurance company from hit and run to uninsured motorist or something like that either way it lowers my deductible to 200.00

 

[gemini5362]

Have you seen the crumple zones on a Volvo????

You have an accident with it...It is big bucks to fix...

That explains the volvo but how does it explain the larger premums for liability on my little old light tin can tracker versus the big 2500 hd silverado. I can pretty much guarantee the 6000 pounds of silverado will do a lot more damage to another vehicle in a wreck compared to what the 1500 pounds of tracker can do. Actually the tracker liability is more than my porsche. So let me some that up. a vehicle which will do about 90mph top end and weighs about 1500 pounds.Cost more money for liability insurance than a vehicle that will do about 160mph top end or a vehicle that weighs 6000 pounds. I am beyond trying to reason what insurance companies base their rates upon.

 

[john_bud]

Also the 2006 they went to a variable vane turbo.

.

Actually, in 2004.5 they introduced the LLY with VVT. Higher performance and lower mpg's.

They also beefed up the block in 2006. The accessories also have changed since 2001. I think 2006 the allison got a 6th gear.


But, you can take a 2008 short block and bolt on heads and all accessories from a 2001. You can swap cranks, pistons, rods and intake manifolds between the two. Obviously, the newer stuff is improved with ongoing engineering.

In 2003 Ford had the 7.3, then the 6.0, the 6.4 and will have the 6.7 in 2009. That's 4 totally different engine designs in 6 model years! You won't find much interchange between any of those 4 engine families, maybe the paint.... Those engine changes are way different than the 221 v8 changing into the 260, the 289, the 302, the way stupid 255, the 5.0L with actual displacement of 4.9l), the 351w, the 5.8l. There is less interchange between those engines of the same family than between the duramax of 2001 and 2008.

 

[Dargo]

How about the GM 350ci small block? I believe it ran from 1955 to 2005. That's a pretty good run. I'm told that the last of the 350ci V8 engines were produced in 2005 as Gen 1+ Vortec 5700 and was available in the Top Kick series trucks. I know you can still buy a 350 small block crate engine and they still make the 350 V8 for marine applications, so technically the GM 350ci V8 would be listed as running from 1955 to ???. In my book, that is some consistency and longevity in an engine design.

 

[john_bud]

Yeah.

I still don't "get" why they have to ditch entire engine families. They say the 7.3 couldn't meet emissions. But, an engine starts out as a set displacement from the piston going up and down. They can easily change the shape of the piston, the shape of the combustion chamber and the intake path. No big deal. In fact the latest aftermarket 302/351 heads have modern combustion chambers and they make gobs of power with excellent economy. I really don't undestand how it's cheaper to start from scratch than to just bolt on a new set of heads & manifolds.

Probably like everything else, it's driven by politics....