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Thread: GM mechanic?? Header bolt??

  1. #1
    Club Member no5.0notch's Avatar
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    Default GM mechanic?? Header bolt??

    I have a 06 Envoy Denali with the 5.3L. And the passenger side front 2 header bolts snapped off. Any body have any recommendations around Shelby Twp where I can take it??

    Thanks.

  2. #2
    Club Member Beigg's Avatar
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    did it snap flush with the head or flange?

    If at the head, I'd try Shelby Auto Repair on 23 Mile Rd.

  3. #3
    Club Member Anthony's Avatar
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    Guy on craigslist did my v10
    All of them for 800
    Swapped out the manifolds for a set that were milled flat
    And 2 year warranty

  4. #4
    Club Member no5.0notch's Avatar
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    It snapped below the manifold. I can’t tell if it’s flush or below the surface

  5. #5
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    Depending on what snapped and where, Dorman makes a couple of clamps for this. One bolts to the front/rear of the head and wraps around the side, the other bolts on the side of the head.

    The one for the side of the block is Dorman 917-142 Exhaust Manifold to Cylinder Head Repair Clamp. The one off the front/rear of the head is DORMAN 917-107 Exhaust Manifold Clamp. Each is available for ~$30 on Amazon.

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