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Stripped Head Bolts

This is a discussion on Stripped Head Bolts within the General Help forums, part of the LSx Technical Help Section category; I'm in the middle of doing a head swap and one of the head bolts came out with some aluminum ...

  1. #1
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    black
    2002 Camaro B4C SS

    Stripped Head Bolts

    I'm in the middle of doing a head swap and one of the head bolts came out with some aluminum threads on it. Any ideas?

  2. #2
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    Helicoil.

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    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    A helicoil is not good enough for a head bolt. You need a Time-Sert. If you can't find the Time-sert kit/tools cheap enough, then ask your local Chevy, GMC, or Pontiac dealership to fix that hole. They most likely have the tools.

  4. #4
    Exalted Cyclops 67CamaroRSSS's Avatar
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    2002 Z28 A4 NBM
    Sadly now demodded :(

    Interesting. I'd not heard of these. They look pretty good. Check it out here: http://www.timesert.com/html/faq.html#1

  5. #5
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    We use them on Cadillac Northstar engines. They work great, but I had a few timeserts pull out. When that happens, then the block is F'd.

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    Member squee's Avatar
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    If it pulled out you couldn't use one of the larger time-serts they were talking about in the video?

  7. #7
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    I haven't watched the video, but yeah I guess you can use one of the larger timeserts. I've heard of them but forgot about those. But those require buying an additional set of tools. We don't have those at our dealership because the tool set is so expensive.

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    1978 Volvo 242GT

    Sooooos, OK, I was wondering if the aluminimumumimmm blocks created any future potential issues regarding stripping out/wearing out the formentioned threaded bolt holes. Apparently sometimes. Is there any OTHER aftermarket support for salavaging such blocks by repairing/redoing the stripped threads?

    I might/may be looking for an used LS engine and am also wondering if worn/stripped threads might be the reason the mill is for sale. Already learned about the piston slap problems----now apparently stripped threads in important places might also be a problem? Thanks for the input.

  9. #9
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
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    The Timeserts are a solid carbon steel insert. They are REALLY nice. You put them in with the really tough red Loctite and your good to go. But as mention they can pull out. Usually that happens more frequently when the proper procedure and tools aren't used.

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