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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Intake Gasket Questions

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Old Sep 25, 2007 | 12:54 AM
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Default Intake Gasket Questions
I have a 94 LT1 and I just did a top end build on it. When I had my heads rebuilt they had to shave 30 thousandths off because of warpage. Now When I reinstalled the intake there is a gap thick enough to put a quarter in at the front and the back of the intake. How am I going to keep this from leaking oil? Thanks.
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Old Sep 25, 2007 | 04:05 AM
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Really? I think mine are shaved like .030 or .035 and I haven't run into any problems? What kind of head gasket are you using? Do you know how thick it is?
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Old Sep 25, 2007 | 08:58 AM
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RTV Silicone
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Old Sep 25, 2007 | 09:37 AM
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RTV is your friend. Mine was shaved more than that and I had no problems.
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Old Sep 25, 2007 | 04:15 PM
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They are stock felpro gaskets. I was also wondering if I would have a problem with clearance issues? I put an LT4 hot cam, and 1.6 rrs in it.
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Old Sep 25, 2007 | 05:00 PM
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The front and back were sealed with RTV, not gaskets.
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Old Sep 25, 2007 | 09:05 PM
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Thats correct, but now since the heads were shaved it has more of a gap than stock.
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Old Sep 25, 2007 | 09:16 PM
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Originally Posted by Chance883
They are stock felpro gaskets. I was also wondering if I would have a problem with clearance issues? I put an LT4 hot cam, and 1.6 rrs in it.
No I have a much bigger cam w/out any issues so far. Put over 4k on the setup, and I'd say it would have made some noises by now.
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Milling the heads shouldn't lift the intake manifold higher off the block at all, and if it did something is wrong.
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Old Sep 26, 2007 | 04:56 PM
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It might have always had that much of a gap, but I never noticed it. How much of a gap should there be?
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