Lower Intake Manifold Torque Spec and Sequence - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-18-2011, 09:24 AM   #1
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Default Lower Intake Manifold Torque Spec and Sequence

Does anybody know the lower intake manifold torque spec and sequence? I plan on ordering a manual, but don't have one yet. I will be putting the new Perma Dry Fel-Pro gaskets in. Thanks in advance!
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Old 01-18-2011, 10:38 AM   #2
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If you are putting in Fel Pro'*, please make sure the part number has a T on the end of it. This will ensure they are the aluminum frame gaskets. Otherwise, you'll end up doing them again. GM Dealer is the other source for aluminum gaskets.

As for the torque and sequence. LIM bolts from the factory should be torqued to 13ft lbs. Start in the middle and work your way out, alternating front/back of motor. Also use a ptfe sealant on the LIM bolts so that they don't wick coolant and oil up onto the top of the LIM.

When using aluminum gaskets, I automatically increase the torque to 15ft lbs.
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Old 01-18-2011, 10:21 PM   #3
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Here you go.

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Old 01-18-2011, 11:17 PM   #4
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Thank you guys, you're awesome.
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Old 01-21-2011, 10:41 AM   #5
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Quick question. There is no 5 in the diagram. Is there one bolt that isn't labeled and that'* number 5?
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Old 01-21-2011, 10:45 AM   #6
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Sorry, yes, it'* right below 11
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Old 01-21-2011, 12:15 PM   #7
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Perfect.
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