C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

??? - torque value, (1985) L98 air plenum bolts

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Old 05-17-2008, 05:17 PM
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Joe C
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Default ??? - torque value, (1985) L98 air plenum bolts

connected my air plenum and runner tubes today, but for the life of me, i can't seem to find the torque values of the bolts in the service manual ( i think they are 8 x 1.25). can anyone help me out here? i did an initial torque of 8 ft.lbs, and followed by 15 ft.lbs. that was just an educated (or uneducated) guess. i sorta okay with the 15# number, but i'd really like to know the spec... TIA

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Old 05-17-2008, 06:54 PM
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John A. Marker
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I checked my manual also and came up with ZIP. I would go with the 15 pounds.
Old 05-17-2008, 11:03 PM
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Demonic85
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My book says 15-20 ft lbs. I set mine to 15 when putting it back together.

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