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

header with no gaskets to head

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Old May 9, 2008 | 08:43 AM
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Default header with no gaskets to head

how many you guys running no gaskets on your header flange where it meets the head? rtv silicone best sealer for this setup?
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Old May 9, 2008 | 08:58 AM
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FWIW...gaskets are too cheap and it would prolly take you longer to get the silicone on and sealed than to just slip a gasket in there. Im not sure silicone will hold the pressure like a gasket will. Plus a header gasket thats leaky or excessively leaking will cause damage to the heads. I recently had to change mine, paid a little more for a better gasket than what was on there so I wont have to do it again or for a long time at least.

Good luck either way.
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Old May 9, 2008 | 09:00 AM
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Originally Posted by lt170chevelle
how many you guys running no gaskets on your header flange where it meets the head? rtv silicone best sealer for this setup?
Fel-Pro 1470.
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Old May 9, 2008 | 09:17 AM
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Originally Posted by caldercay
Fel-Pro 1470.
The fel pro 1470.... haven't had any problems since I installed the headers a year ago.....
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Old May 9, 2008 | 09:36 AM
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Thats a dirtcar trick cuz they constanly working on engines, you really dont want to do it b\c that doesnt last long at all.
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Old May 9, 2008 | 12:03 PM
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ok thats what i was thinking. somebody mentioned doing the no gasket thing but i was pretty leary.now do you think the felpros would be a better choice over aluminum gaskets for any reason?
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Old May 9, 2008 | 12:29 PM
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I can tell you I blew out a percy's aluminum gasket. Kinda expensive if one of the bolts come loose. I know on their package it says they won't get wrecked, well thats just not true.
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Old May 9, 2008 | 01:15 PM
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I've always ran the fel-pros on both my cars and havent ever had an issue. I think I used the 1406's.
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Old May 9, 2008 | 01:22 PM
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Originally Posted by StealthFormula
I've always ran the fel-pros on both my cars and havent ever had an issue. I think I used the 1406's.
1405? That's the square port model. The 1470's are the D-port configuration.
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Old May 9, 2008 | 01:49 PM
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Originally Posted by caldercay
1405? That's the square port model. The 1470's are the D-port configuration.
1406's are D-port

http://store.summitracing.com/partde...5&autoview=sku

I have used them on both cars and they've worked great. Thunderracing sells them in the gasket section for LT1's.
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Old May 10, 2008 | 02:15 AM
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i hear the best thing to do is silicone metal to metal...

myself havent ahd problems with felpro stock carbon gaskets
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