Another hair splitter. Gm owns the better part of Isuzu. The Isuzu diesel is a very stout one. The partnership between the two companies produced a healthy motor. Teething problems like most. The block is some kind of pressure injection molded iron. The heads are aluminum. They used aluminum wherever possible to keep the weight down. Have you guys checked out what these things weigh. The cummins is the heaviest of the 3 but the smallest displacement with the fewest cylinders.
The Duramax 6600 weighs only 836 lbs., thanks to the use of aluminum in key components like the cylinder heads, crankcase, accessory drive brackets, intake manifold and flywheel bell housing. Aluminum is lighter than steel, which is an added benefit that supports the over-all fuel economy goals.

The use of aluminum helps in heat rejection, which improves combustion efficiency.
from the website. Nothing is said about the block being aluminum.
http://www.duramaxdiesel.com/04_comparison/index.htm
This is dmaxltds site not chevy. Its very imformative.
I found it before but its eluding me tonight. If you read carefully it says deep skirt cast iron block. duramax standard, powerstroke not available, cummins standard. Looks like cummins old idea was worth recycling into a new motor. Outdated ,maybe, maybe not.
Again to split hairs. All diesels are direct injection(at least the ones I know about). And dont tell me about a chevy scavenge diesel itll just irritate me.

 

I work for the company that makes the injection system for the DMAX diesel. The multiple fuel injections are what makes the engine quite and the high injection pressures are what makes it burn clean. The system is very simular to the new 5.9 litel dodge engines. Compare a 2001 dodge with the 03 model. The 03 models performance is much better and it is a lot quiter. These new generation diesels out perform gas engines. I drove a Audi A3 with a 2.0 liter (115 horse) unit injector diesel during my last trip to Germany. I cruised at 110mph (185kph) with power to spare. I hope the USA wakes up to diesel power.

 

Somin about those european cars. Their little 2.0 liters and 1.8s could walk most of our 5.0 to 6.0 liters. Very potent little motors in lightweight cars built for the audobahn. Toyota is making like 100 hp per liter in the cars i research. The all american 5.0 made like 205 for years in stock form. The 2 liter euros make more than that on about 1/3 of the displacement. My boss has a 1.8 rover that would give a pre-supercharged cobra a run for its money. mean little motors. Look at what porche does with the little boxer 6s.

 

America seems to go for the big cube diesels over the imports. That is why the big three diesels are bigger. American's want power now, not 3,000 rpm down the road. Horsepower has little to do with cubic inches. Torque is the rising factor there.

 

Haven't you guy's heard of the new 6.0 Ford diesel? It easily out classes the old 7.3 in torque, hp, and milage

 

My dad has one, the 6.0L in a F350 CC KingRanch single axle 4x2, and its great. It outruns, outpulls, and outperforms the 6.9 and 7.3L PSD's we have. I love and we have no problems or complaints, however it is only 2 months old.

 

#2 Block is steel, heads are alum, #3 70% or our loaded 450-550's get less than 8 MPG, the rest are under 10, #4 between 99-2002 we have lost 61 Ford t-cases, 52 DT-444 engines (AKA Powerstrokes) and all 1999,2000 and 2001 auto trannies!!

I hope the new powershift is better!!!!!!!

 

Gunman45, are you a Ford engineer or a Ford employee? You sound like one. Check my profile

 

Nope, just an emergency apparatus builder. I order 75-100 450-550’s a year for up-fitting into rescues, type 6 wildland and mini-pumpers and talk to a lot of fleet guys and end users. Granted, they are used a lot harder and see more rugged terrain than your normal curb jumper, but!!

I drive a 6.5/manual 5-speed, ext cab and lost the pump last year. GM replaced it under warranty and extended the warranty to 11 years so I can’t complain plus I average 18.6 mpg. I am however looking for at all the new 4-doors as my son is getting older, taller and etc. but I think I will wait until all the smoke clears on the VT 365/powershift, ISB/whatever transmission and the Duramax/Allison World transmissions before I order a new truck.

One thing on the PS 6.0, have you looked at the air cleaner? That big massive honeycomb filter scares me because it looks like it will clog even if it just sees a dirt road, plus the fact even the plastic shell is disposable and will be quite spendy to replace.

All of our 20,000# + GVRW apparatus uses the Allison World transmissions and we have had great luck with them (though they have been the 2000/2500, MD, HD and EVS series).

Tried your URL and MSN said it could not be found.

 

Rat- You found out why I use the "Torque1st" handle...

Nice info guys!

 

Uh...yeah. IBM made the first PCs then those spying little people stole the technology and started selling cheap knock offs that were built in sweat shops.



edited for language

 

That's the only way you will pull it.

 

If you want a REAL diesel then why would you get an engine that doesnt even sound like a REAL diesel engine? Everyone knows that the Powerstroke engines dont even compare to duracraps

and on the subject on japs vs. american made PRIDE

FORD=USA

 

I wish we could have the Caterpillar 7.2 L in our trucks. that would be in the 600-700 lb-ft. range. drool

 

That would be nice but the transmission would have to be an MD Automatic or a 6 + 1 manual due to the torque which are big, heavy and very expensive and then you would need a least a 7,500# or 8,000# front axle for 4-door cabs.

You can buy a Ford 650 crew with the 3126B cat and have a 4 X 4 conversion for about $56K.