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Thread: Headgaskets

  1. #1
    Join Date
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    Default Headgaskets

    My 07 3500hd. Is all apart. Presently doing a frame swap. With the engine out what are somethings I should replace? The truck has 217k on it. Parts of the exhaust have been removed by the previous owner. Other then that I don't really know what else has been done to it. I thought it would be a good idea to replace the head gaskets and other hard to reach parts. Any ideas would be helpful. Thanks
    Jeff

  2. #2
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    Default

    That's a tough one. Borders between if it aint broke don't fix it and better to be safe than sorry. Head gasket issues are not exceptionally common, but they do happen and the labor "from scratch" is pretty rough...
    Kennedy Diesel-owner
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  3. #3
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    Default

    Clean the intake manifolds of all the soot that inevitably built up over the past 200K+ miles
    Clean the heads and redo the valve guides and seals (gotta pull the heads to do that, IIRC). Shave a bit off the heads to flatten them back out after having the valve seats reground.

    Do it and be done. It won't be any easier than now. Do the water pump too.

  4. #4
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    If it ain't broke, fix it `till it is.
    The Constitution needs to be re-read, not re-written!

    If you can't handle Dr. Seuss, how will you handle real life?

    Current oil burners: MB GLK250 BlueTEC, John Deere X758
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  5. #5
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    Default

    That's a tough one. Borders between if it aint broke don't fix it and better to be safe than sorry. Head gasket issues are not exceptionally common, but they do happen and the labor "from scratch" is pretty rough...
    That is true John. I did the gaskets on a lb7 in the truck and it was a pain. If I do decide to pull it apart. Should I go with head studs? I have no plans to sell the truck. I wanted to put a 3" down pipe while the cabs off at least.
    Jeff

  6. #6
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    Default

    Do it and be done. It won't be any easier than now. Do the water pump too.
    You have a good point.
    Jeff

  7. #7
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    Studs are mandatory in my well founded opinion.
    Kennedy Diesel-owner
    More than just a salesman-I use and test the products that I sell on a daily basis!
    Superflow Lie Detector in house
    2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
    2005 Chev K3500SRW D/A CC Long LT(SOLD)
    2007 Chev K2500 Classic EC Short LT (Sold)
    2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
    2016 GMC K3500SRW D/A CC short LTZ

    Custom tuning in house using EFI Live tuning software!

  8. #8
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    Default

    I agree. No point and using oem bolts. After watching a youtube video on replacing the gaskets in the truck. I think I will just bite the bullet and do them before I put the cab back on. That was not a fun job years ago on my old Lb7.
    Jeff

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