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Studs

This is a discussion on Studs within the General Help forums, part of the LSx Technical Help Section category; Ok got an issue..I have 1 stud that doesn't go in like the rest. I've check about 30x and cleaned ...

  1. #1
    Spaz is My Mentor SMWS6TA's Avatar
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    Studs

    Ok got an issue..I have 1 stud that doesn't go in like the rest. I've check about 30x and cleaned it just as much. So I know it's clean & clear. I took a coat hanger and trimmed a long piece, insert it and marked it. Next put it in another hole and made another mark. Did this to all along the bottom pass side of the block. The middle hole is not as deep as the rest. It's almost an 1/8th on an inch.


    Could it be a fluke? I check with the head and it has more than enough threads to tighten down.

    LQ4 block if it matters.

    What you think?

  2. #2
    Spaz is My Mentor SMWS6TA's Avatar
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    I just check the gm bolts are about 1/2" shorter than the studs.

    drivers side all good


    pass middle row all good


    bottom row middle stud...

  3. #3
    Smiles for 9.5 Years cammed goat's Avatar
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    Possible incorrectly measured stud from the manufacturer? Is there any excess flash or casting on the end of the stud that is causing it to not thread in all the way? The only other possibility is maybe some excess casting on the bottom of the hole in the block. How are the threads on that stud and in the block?

  4. #4
    Senior Member theorangeguy's Avatar
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    I personally would either get another stud sent to me "just to be sure it's the right length" and if that doesn't work, I would take a dremel and take a small amount of threads off the bottom...
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  5. #5
    Spaz is My Mentor SMWS6TA's Avatar
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    Studs

    I measured the studs and they all were the same. I checked to see if there would be enough threads to bolt down by placing the head on. No issues, plenty of threads to tighten down. I'll post pic later..
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  6. #6
    Smiles for 9.5 Years cammed goat's Avatar
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    That's odd. Did the original stud sit that high as well? I ask as I am wondering if the block was machined with that shallow hole intentionally.

  7. #7
    Spaz is My Mentor SMWS6TA's Avatar
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    I found it odd too, I checked with the machine shop yesterday and he said it's possible that one hole was machine just enough to clear the stock bolts. I did a comparison to some stock bolts I use for hoisting the block and they were shorter than the studs. It's working.


    My other problem was I rounded a nut last night, called ARP and they are sending me another few. I didn't even get to full torque they required (80ftlbs). I was on my third pass to get to 80 and as I begin to push the torque wrench it felt like it slid off. When I looked I saw the threads had rounded off.

  8. #8
    Smiles for 9.5 Years cammed goat's Avatar
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    WTF is going on with these companies these days? Engine hardware shouldn't be breaking/failing while installing. Things like this worry me. That bolt shouldn't have rounded off like that.

  9. #9
    Spaz is My Mentor SMWS6TA's Avatar
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    I'm thinking it was my fault. After talking with ARP I should have used a 1/2" socket vs the 13mm that I used. I thought it was 13mm never even thought to check for a standard would fit.

    I was able to get the nut off using a 1/2" socket. Just waiting on the replacement form ARP to arrive in the mail.

  10. #10
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    I use 1/2" for 13mm and 13mm for 1/2" all the damn time in my garage. Whichever one I find first gets used!

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