2003 Chevy Silverado Cylinder Head (Help!)
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2003 Chevy Silverado Cylinder Head (Help!)

  1. #1
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    Default 2003 Chevy Silverado Cylinder Head (Help!)

    I have a 2003 Silverado, 5.3L with Castech 706 heads. Driver side head is cracked (Thanks Chevy) at the rear mounting bolt in the oil drain (pic attached). I am aware of this TSB:

    http://ww2.justanswer.com/uploads/Bl...t_loss_5.3.pdf

    and have read a bunch of threads on various boards dealing with the issue. I want to replace both of the heads with non-Castech heads and have been searching for a while but all re-manufactured heads I have found are Castech (since there are so many bad ones). Does anyone know where I can find non-Castech re-manufactured heads?

    Also, this is my parts list so far. Any additions?:
    new heads
    #89017252 5.3L/4.8L Complete Head gasket kit
    #12498545 Head Bolt kit
    New exhaust manifold collector(?) gaskets
    I also wanted to replace the bolts that hold the exhaust manifolds on since they seem to break. Should I do this? Any recommendations?

    My truck is in pieces and I need to get this resolved quickly. Worst case is to get one re-manufactured Castech head and put it back together but I would really like a long term solution to the problem. Any other ideas? Thanks
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  3. #2
    Can't re-Member 28Eliminator's Avatar
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    Stop Leak and a For Sale sign should do the trick
    I'd agree with you, but then we would both be wrong
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  4. #3
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    Quote Originally Posted by 28Eliminator View Post
    Stop Leak and a For Sale sign should do the trick
    I have had so many focking problems with this truck, this may be the last straw. The for sale sign was the first thing I though of. Dont really have the $$$ to spend on a new truck though.
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  5. #4
    Ralphs club member LSXINDUSTRIES's Avatar
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    PM me and Ill get you set up with a cheap set of factory replacement heads. They're a dime a dozen for a 5.3. Suprised you have so many problems with you truck, they tend to be the most reliable trucks out there usually. Hell.....the brake pads last 150k even! Anyways, if you need heads PM me
    “I am on a drug. It’s called Charlie Sheen. It’s not available because if you try it, you will die. Your face will melt off, and your children will weep over your exploded body.”


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  6. #5
    in the works MAD GREEK's Avatar
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    is it a charcoal grey??? it was probly mine, had cracked heads. sold it a few months back.. sorry dude!
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