7.3l vs 6.0l powerstroke, which one and why?

Discussion in 'Trucks and Trailers' started by UrbanGreen, Jan 1, 2009.

  1. UrbanGreen

    UrbanGreen LawnSite Member
    Messages: 162

    I have been in search of an older f250 with the 7.3l powerstroke for quite a while now and have'nt had so much luck finding one. I have constantly been told to avoid the 6.0l and just keep looking for the 7.3l. I have heard the horror stories of the early 6.0's but what about the later ones? Why is the 7.3 considered to be so much better and why not go with one of the later 6.0's?
  2. Green Pastures

    Green Pastures LawnSite Silver Member
    Messages: 2,457

    Look I'm not trying to be a dick.....

    But this subject has been discussed ad nauseam on about 357,621,802,653,775,219 different internet forums since 04' when the new 6.0 replaced the 7.3.

    Please make liberal use of the SEARCH function on this and MANY other forums.
  3. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Messages: 9,544

    Look for a 05 to 07 6.0 and get a OASIS report on it. I bought a 03 6.0 but the OASIS was clean and I'am happy with the truck. You are going to have a very tough time finding a 7.3 powered truck most of them are worn out high mileage trucks.

    Ford trucks are always in demand people want them so its why its hard to find a good used truck.

    I looked for a long time to find a F-450 or F-550 with 7.3 couldn't find a truck in good shape so I looked at the 6.0. I took my time looking for a 6.0 too.

    The pros about the 6.0

    More power over a 7.3
    Quieter than a 7.3
    Fuel economy is a little better

    The Cons

    You could end up with a truck that a dealer and owner made into a problem child. The biggest problem with the 6.0 was the dealers that can't work on them and made the simple problem worse. The owners are at fault for not doing maintenance and having a tuner pushing the engine past its limits.

    The people that boo hoo the 6.0 are people that never owned one or ones that had one and caused their own problems and had a dealer with a inexperienced mechanic.

    The newer 6.0s had most of the problems cured but they still can have troubles.

    The 6.0 is a little more finnicky about maintenance like keeping the oil changed and the fuel filters kept up.

    Once you get a 6.0 GRIN you will never get rid of it. I will never go back to a 7.3 again. To start with I don't think I could take the noise and the 7.3 doesn't have near the tire fire power as a 6.0 in stock form.

    Oh ya a OASIS report is the trucks repair history done through Ford it shows all the warranty work done. If the OASIS report comes out to be a laundry list of problems then don't buy the truck.
  4. UrbanGreen

    UrbanGreen LawnSite Member
    Messages: 162

    Thanks for the helpful reply. I didn't think about the OASIS report before thank you.
  5. 12Valve

    12Valve LawnSite Member
    from NC
    Messages: 115

    Ford quit making dependible trucks in 03. 6.0 have problems with injector orings, heads, headgaskets, turbo's just to name a few.
  6. jefftb

    jefftb LawnSite Senior Member
    Messages: 563

    I'll speak with actual ownership information for me as well as some of my subs and friends.

    I had a 2004 F250 6.0.


    Within the first 15,000 miles the truck needed work on the heads (twice), the turbo (once), and the transmission (twice). The suggestion from Ford was that we should add additive to each fill-up and they gave us three bottles complimentary. The additive was diesel kleen under another name no doubt.

    A very good sub (and friend) has just recently had his 2005 6.0 in the shop twice in two months for turbo work. Mine died/puked on the on-ramp.:cry:

    My local shop works on quite a bit of 6.0's for a federal agency.

    I gave up on my 6.0 and found a very gently used 2003 F350 CC 7.3 PSD.

    GR can talk crap about the 7.3 PSD all he wants. The 7.3 is the most reliable diesel engine FORD made. Period. There are numerous individuals on a very popular Ford Forum that switched from the 6.0 to the 7.3. You can expect 300,000+ from the engine with maintenance. However, the 7.3 variants will have the weaker Ford 4R100 transmission.

    When the 6.0 works and runs there is no comparison between it and the 7.3 The 6.0 will pull away in every category over the 7.3. 7.3 Noisier? Yep. 7.3 lacks HP? Yep.

    I however want my truck to start and run when expected. My 6.0 resulted in 4 weeks lost downtime in one year. My 7.3 will tow my 12,000 lbs just like the 6.0. I might arrive a few minutes later but I can expect to arrive.

    The 2006 and 2007 models of the 6.0 seem to be much better products. If looking at one stick to those years. However, be prepared for high repair costs in the back of your mind-they will most likely come at some point.

    As an aside if you really want something that approaches the 6.0, find yourself a V10 6.8L Ford and swap the ring gears out to the 4.30. That truck very nearly equals the 6.0/6.4 in towing performance. I'm moving my F350 down to crew truck category in the near term and have my sights set on the V10.
  7. Jerry Lee

    Jerry Lee LawnSite Senior Member
    Messages: 354

    7.3 is ur best bet for dependability
  8. TXNSLighting

    TXNSLighting LawnSite Fanatic
    from DFW, TX
    Messages: 6,463

    03-05 6.0's had their problems, but there were still quite a few good ones out there. 06 and 07 had very little issues and are great trucks to own. They beat the 7.3 in every category.

    I used to own an 04 6.0 that was very problematic. But i would own another one. It was my own dang fault for buying and 04 and not getting an oasis report. You should never buy a first year engine. So in closing if you can find an 02 or 03 7.3 with under 100k miles jump on it. Otherwise get an 06-07 powerstroke.

    And as someone else stated the V10 is a great engine, even tho its a gasser.
  9. nosparkplugs

    nosparkplugs LawnSite Gold Member
    Messages: 3,444

    When the Ford dominate clan talks trash about the rest I have ZERO PITTY?? quietly these threads have emerged across the WWW over the years. Lawnsite has been drinking the Ford "Kool Aide" for WAYYY to long. The 7.3L vs 6.0L debate is never ending Many would ride the Ford brand loyalty bus off the bridge if only to save their own arse; which is insane. Ford & International are suing each other over who should be responsible for excessive warranty claims, that alone has drove owners away from Ford.

    Here's some salt for the wound


    6.0 main flaw is weak head gaskets, easy fix with APR head studs that will solve many of the issues. Some folks were smarter, and invest in the APR head studs right out of the box

    Aftermarket intercooler solves the turbo issues

    EGR delete is "illegal":sleeping:, but is the last weak link

    The 6.0 will then lay down some reliable neck snapping torque

    With the most trucks on the road Ford should have it right, but that's always been the excuse for their problems.
  10. CrystalCreek

    CrystalCreek LawnSite Bronze Member
    Messages: 1,805

    '04 powerstroke owner here. I LOVE MY TRUCK!!! I cant believe I am about to type this, but Gravel Rat is right. Once you get the 6.0 grin, you will never go back. Gravel Rat is also very right about most of the problems are inflicted by the owners themselves. I will caution you about some of the problems. The 6.0 have an internal EGR cooler. They tend to fail. There is a very simple procedure to remove it. This is the one biggest problem with these engines. The removal costs are less than $200 if you do it yourself. PM and I can tell you more. The engines also sometimes blow head gaskets. But this is mostly due to jacka$$'s hotrodding their engines. Trust me, I'm one of those jacka$$'s:hammerhead::hammerhead: I had it fixed under warranty and at the same time they upgraded the head bolts with head studs. No more problems:) You will hear people say that these engines cant idle because it will destroy the turbo. This is why the EGR delete is so important. My truck idles heavily. My personal truck has over 7000 hours with no problems. My work truck, from when I worked in the utility company, which was a 6.0 also, had 22000 hours. I trust my 6.0. Get one. You will be very happy. Find a good dealer that has a good diesel mechanic. If you are looking for a good website, check out Powerstroke.org. Great info on there.

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