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I need help (Ellis or Mark)

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Old 04-12-2007, 07:41 PM
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Default I need help (Ellis or Mark)

I posted this in the internal engine thread but i haven't been getting the answers i need so i thought i'd try the good ol' NW section. Anyway, im doing a H/C project for my car an i need to get gaskets, problem is i don't know where to get the ones i need. I ordered a set of Stage 1 LS6 heads from Patriot an they told me to use the gm graphite gaskets at .041 compressed thickness-(im raising the CR to 10.7:1) i then find out that GM doesn't make this thickness of gasket. So i thought i'd go with cometics but they don't have the bore size i need to match my heads-i need 3.905, I also need to know what other gaskets i need to do a heads and cam swap. does anyone know of a kit i can get with all the gaskets i need including the head gaskets? thanx in advance
Old 04-12-2007, 09:08 PM
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I'm using the Cometics, but my bore is 4.0......I really don't know off hand. Sorry!

I will say you don't "need" to replace the factory rubber gaskets on LS1s. I usually replace the water pump gaskets just because, but other than head gaskets you should be OK using the old ones again (provided they look good - not torn, etc)
Old 04-12-2007, 09:37 PM
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Originally Posted by WAHUSKER
I'm using the Cometics, but my bore is 4.0......I really don't know off hand. Sorry!

Thunder Racing, or TSP. They should have what your looking for.
Old 04-12-2007, 10:12 PM
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I checked TSP an they have cometics at .040 but thier at a 3.910 bore, why am i not able to find 3.905 anywhere? is the something im not getting here?
Old 04-13-2007, 12:08 PM
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bump...
Old 04-13-2007, 12:16 PM
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okay, thunder racing has the bore i need but its a .045 thickness, is this the compressed thickness they give you? or is that straight outta the package?
Old 04-13-2007, 10:05 PM
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Originally Posted by Daredevil_TA
I checked TSP an they have cometics at .040 but thier at a 3.910 bore, why am i not able to find 3.905 anywhere? is the something im not getting here?
.005 bore size or .001 in thickness is not going to matter even a little, except maybe if you were building an F1 engine.
Old 04-13-2007, 10:13 PM
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The 3.910s are fine

I get all my gaskets local or from SDPC2000.com
Old 04-14-2007, 02:25 PM
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i see, i wondered about that-glad somebody finally came to the rescue, thanx again



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