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Intake manifold install

This is a discussion on Intake manifold install within the General Help forums, part of the LSx Technical Help Section category; do i have to be excat with the amount of in/lbs of torque when im putting the manifold back on?...

  1. #1
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    Intake manifold install

    do i have to be excat with the amount of in/lbs of torque when im putting the manifold back on?

  2. #2
    Member Nitrous's Avatar
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    97 GMC with 02 LS6 engine

    Are you saying you're not going to use a torque wrench? If so I would recommend one. Just remember, a torque wrench is only as good as it's calibrator. I get brand new torque wrenches all of the time and have to send them back for calibration yearly. PROTO, SNAP-ON, etc.......They aren't all accurate unless you verify so. You're dealing with aluminum and plastic here so try to be as accurate as possible for a problem free LSX.

  3. #3
    King 0f n00bz shady milkman's Avatar
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    blacker than wesleysnipes
    98' trans am

    um as close as humanly possible

  4. #4
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    Getting to the back bolts are a pain but doable. Just use the right pattern and be extra careful not to overtighten.

  5. #5
    txcosmos
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    Remember, The intake manifold is in inch pounds not foot pounds, or at least it was on my car....

  6. #6
    We'll be back... GatorSS's Avatar
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    Yes...don't guess or you'll wind up with problems.

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    Senior Member Redphoenix1998's Avatar
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    yes or else the o rings won't seal up properly. If you over tighten you'll break the bolt in the head and you'll have a bigger problem than you started. It's easy to overtighten without a torque wrench

  8. #8
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    okie dokie, thanks for the input tis much appricated

  9. #9
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    Here's a torque spec sheet if you don't have one.
    f-body torque specs

  10. #10
    Senior Member SeVeReDiStOrTiOn's Avatar
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    05 Wrangler
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    I just hand torqued mine....comes out to 7ish ft/lbs which is barely anything. If you can't do it by feel then def get a torque wrench...it's important to also torque it down in the right order and over 2 passes.

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