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

What Kind of Header Gaskets are you guys running?

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Old 03-26-2006, 08:07 PM
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Default What Kind of Header Gaskets are you guys running?

I currently have long tube pacesetters on some AFR heads. The questions is that I wanted to know what kind of headers are you guys running because my keep blowing out. I have percy's, fel-pro, mr. gasket.
Old 03-27-2006, 01:17 AM
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Get some copper ones. I heard those are the best.
Old 03-27-2006, 02:16 AM
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I've been using these Earl's Pressure Master gaskets for a while now on my blown 383 and they are holding up well. You can also get replacement inserts. They are easy to trim, too, because the sealing portion is pure graphite. Here's the D-ports that fit the LT1:



They have not been coming loose either. Summit carries them. Not too expensive. I like the Felpros too, but they are almost impossible to trim cleanly if you've done any port work.

I'm using the larger D-port version with ported Edelbrock E-TEC 200s. They needed a little trimming at the top of the ports, and a new Exacto blade works great.



Jim

Last edited by DeltaT; 03-27-2006 at 02:21 AM.
Old 03-27-2006, 05:30 AM
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blown 383,cometic.
Old 03-27-2006, 06:12 PM
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I use the Fel-pro header gaskets.
Old 03-27-2006, 06:22 PM
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Fel pro 1406s
Old 03-27-2006, 06:59 PM
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I blew out the Felpro 1406's around the bolt holes so I went with the Percy carbon gaskets and they're holding up so far.
Old 03-27-2006, 07:44 PM
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I have tried the Felpros, but they seem to blow out around 6k RPM. Currently I'm using percy's but starting to leak a little. I think that it's my headers (pacesetters). I heard lot of people have header leaks with this headers. Has anyone heard bout this.
Thanks for your replies guys.
Old 03-27-2006, 07:55 PM
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I'm running Pacesetter LT's on my car and its stock right now but i used the gaskets that came with the headers and no leaks yet!
Old 03-27-2006, 07:58 PM
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I used the headers that came with the kit, but when on the dyno it blew the one on the passenger side ever since I've been having problems with that side. don't know if the 396 stroker making a difference, but can't find the right one's for pacesetter and AFR ported heads.
Old 03-27-2006, 08:06 PM
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I say give the Copper gaskets and try, i've heard really good things about them!
Old 03-27-2006, 08:07 PM
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Cool,

thanks for the help
Old 03-27-2006, 08:11 PM
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No problem dude, hope everything works out for ya on this go around!
Old 03-27-2006, 09:04 PM
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I hope copper gaskets are good because I just spent good money on mine! lol.
Old 03-27-2006, 11:17 PM
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copper ones are great my car sees 6grand almost evry day no pbob



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