1964 Impala SS - Intake Manifold Torque - Hot Rod Forum : Hotrodders Bulletin Board
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Old 07-06-2010, 01:32 PM
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1964 Impala SS - Intake Manifold Torque

I have a small amount of oil coming out of a few of the the intake manifold bolts. What is the correct torque required to tighten the bolts? Any other suggestions?

Car: 1964 Impala SS
Engine: 327 cu.
Transmission: Automatic
Intake Manifold: Edelbrock (not sure about the specs). (See Pic).

Thanks in advance...
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Old 07-06-2010, 01:44 PM
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Not sure of the exact torque, probably 25# or so......They also should be torqued in 2 or 3 steps in a specific pattern, just like head bolts.....from the centre out to the ends......


If you are leaking oil now, I would think that the gaskets need to be replaced.....you might get lucky just tightening them....maybe not
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Old 07-06-2010, 01:47 PM
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Torque should be 25# for aluminum 30# for cast and in steps like poncho said.


Cole

Last edited by eloc431962; 07-06-2010 at 01:50 PM. Reason: wrong info
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Old 07-06-2010, 01:59 PM
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You need sealant on the intake manifold bolt threads. I usually use oil resistant RTV.
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Old 07-06-2010, 02:07 PM
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Quote:
Originally Posted by poncho62
If you are leaking oil now, I would think that the gaskets need to be replaced.....you might get lucky just tightening them....maybe not

I'll second that and that the bolts need sealant.
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Old 07-06-2010, 03:13 PM
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Ditto on the sealant. I had that problem even after final assembly with new gaskets on my edelbrock. Oil would pool in the center bolt locations. I removed them and ran a bead of permatex red under the washers on the intake bolts and have had no more problems.
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