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Which gaskets and bolts for heads for boost ??

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Old Feb 22, 2006 | 02:58 PM
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Default Which gaskets and bolts for heads for boost ??

ok well ive done seaches and that wasnt good enough so i would like my fellow fi people to help me first question is

1.what gaskit for my 6.0 lq9 heads to use on stock block( best for boost and no leaking ohh can you include part number?)

2.what bolts to use on heads so i dont lift them?

3. what exhaust manifold (gaskets p/n please) for stock ls1 manifolds??

thanks guys~~!!
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Old Feb 22, 2006 | 03:22 PM
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Definetly use arp head studs to hold them down.
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Old Feb 22, 2006 | 05:03 PM
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hmm there are so many to choose from any sertain recommendaytion?
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Old Feb 22, 2006 | 05:22 PM
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witch gaskets....... hmm do they ride around on a broom and put spells on people? ha sorry i couldnt resist!
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Old Feb 22, 2006 | 05:35 PM
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ARP 12pt. studs and stock GM MLS.
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Old Feb 22, 2006 | 06:08 PM
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I remember seeing some problems with the cometics. i was going that way but decided against it.
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Old Feb 22, 2006 | 06:45 PM
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hmmm any part numbers my friends?
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Old Feb 22, 2006 | 08:35 PM
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Off the shelf ARP head studs.
Stock GM 6.0 MLS head gaskets
Stock exhaust manifold gaskets

Should do you up to 1200 FWHP. Ask me how I know. Sorry no part #'s
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Old Feb 22, 2006 | 08:48 PM
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ah you cannot listen to twntrboce he doesnt know anything lol damn ohio boys j/k I think sdpc has part numbers over there --------------------------------------->

ah i got bored this is where i got mine HERE

Last edited by dynedta; Feb 22, 2006 at 09:08 PM.
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Old Feb 22, 2006 | 11:34 PM
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Originally Posted by TwnTrboCE
Off the shelf ARP head studs.
Stock GM 6.0 MLS head gaskets
Stock exhaust manifold gaskets

Should do you up to 1200 FWHP. Ask me how I know. Sorry no part #'s
that'll never work
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Old Feb 23, 2006 | 12:23 AM
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12589227 6.0 MLS head gaskets X2
12558573 exh gasket X2
SDPC had them in stock along with ARP head studs, just ordered them myself recently and they had them.
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Old Feb 23, 2006 | 02:48 AM
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thanks guys !!!
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Old Feb 23, 2006 | 07:48 AM
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What exactly is wrong with the ARP head bolts and "cometic gasket" combination? Curious becuase thats what I'm using on my stroker. So the the 6.0 head gaskets would be a better combo under boost?? The exh gaskets are required also for a "boosted" motor?
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Old Feb 23, 2006 | 07:55 AM
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Some people have had issues with Cometics leaking. Others say to re-torque them & they are fine. Which is what I did....excuse me, witch....and I haven't had any leaks yet. I think they are basically hi-$ versions of the GM MLS gaskets.

There is another gasket with a steel (?) ring around the cylinder that I would use if I was planning to run a lot of boost.....the brand name escapes me now. But they cost $200+!
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Old Feb 23, 2006 | 08:04 AM
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SCE gaskets, and that's what I am running on my Typhoon
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Old Feb 23, 2006 | 10:33 AM
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Thanks for the info...what about exh gaskets? Better off using the #12558573 gaskets over the metal stockers I've had zero issues with over the years?
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Old Feb 23, 2006 | 02:37 PM
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Originally Posted by WAHUSKER
Some people have had issues with Cometics leaking. Others say to re-torque them & they are fine. Which is what I did....excuse me, witch....and I haven't had any leaks yet. I think they are basically hi-$ versions of the GM MLS gaskets.

There is another gasket with a steel (?) ring around the cylinder that I would use if I was planning to run a lot of boost.....the brand name escapes me now. But they cost $200+!
Cometic come out with a new gaskets thats suppose to help with extremely high boost so you dont have to o-ring the block.. Suppose to save people a **** load of money.
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Old Feb 23, 2006 | 02:46 PM
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Why the studs? Whats wrong with the 6pt bolts?
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Old Feb 23, 2006 | 03:01 PM
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Originally Posted by Somebody09
Why the studs? Whats wrong with the 6pt bolts?
you can use the re-studs and their suppose to hold a little better. The bolts "should" be replaced after one use.
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Old Feb 23, 2006 | 03:05 PM
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Originally Posted by DJ's99SS
What exactly is wrong with the ARP head bolts and "cometic gasket" combination?
That's the compo I ran. Pulled the heads twice and re-used the gaskets. It will being running boosted for over 2 years with no issues or leaks.
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