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Old 05-28-2013, 04:20 PM
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head gaskets, best brand?

I know that pontiac's compress to .041 with a stock gasket, I've been looking around and was thinking about going with a cometic head gasket that seems to be specifically for a 350 bore with a compressed thickness of .027. Is that a good necessary? They seem expensive. Running NA 300 or so HP.

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Old 05-28-2013, 04:28 PM
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Quote:
Originally Posted by Nuck Chorris View Post
I know that pontiac's compress to .041 with a stock gasket, I've been looking around and was thinking about going with a cometic head gasket that seems to be specifically for a 350 bore with a compressed thickness of .027. Is that a good necessary? They seem expensive. Running NA 300 or so HP.
What is your goal by using a thinner gasket????
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Old 05-28-2013, 04:31 PM
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you cant find a stamped steel shim gasket? I'm not a poncho guy, but they are available for a lot of different engines.

for 300hp it seems way overkill, whats wrong with the gasket you have?
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Old 05-28-2013, 06:05 PM
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some guys run Fel pro and some like Victor reinz. Both will have arguments as to why theres is better.
A .027 cometic? not necessary, or even desireable.
They require an insanely clean finish on the heads and block surface, so both need machined. If your going to machine the block deck, just zero deck it , run the .041 gasket, get some quench and be happy.
Dont waste your time and money with a cometic. Your build doesnt warrant that.
Look at my project journal, the 389 I have uses Fel pro head gaskets. It will destroy the rear tire (one wheel wonder) from a dead stop.
9.5 to 1
.046 quench
crane 272-2 cam 218-226 @.050 112lsa
crosswinds intake+ Q jet
2.5 inch duals
I am guessing my HP is around 365-375.
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Old 05-28-2013, 08:31 PM
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For a 300 hp 350 any name brand gasket should do fine. If it blows it was for some other reason than the brand of gasket.
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Old 05-28-2013, 09:01 PM
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I've use FelPro for years and no complaints.
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Old 05-28-2013, 09:53 PM
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It will destroy the rear tire (one wheel wonder) from a dead stop.
LATECH, When are you going to FIX that?
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Old 05-29-2013, 07:44 AM
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We use Victor/Reinz for most applications. The high-end engines get Cometics. No one seems to have the 326/350 "correct" gaskets anymore. One of our stock-class guys has been looking but can't find them.

Jim
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Old 05-29-2013, 11:19 AM
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Originally Posted by Mr. P-Body View Post
We use Victor/Reinz for most applications. The high-end engines get Cometics. No one seems to have the 326/350 "correct" gaskets anymore. One of our stock-class guys has been looking but can't find them.

Jim
Are you saying that they are incorrect because bore size of the gaskets is 4.125"? Or what do you mean exactly?
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Old 05-29-2013, 05:13 PM
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LATECH, When are you going to FIX that?
Still working on that Bill...LOL
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Old 05-30-2013, 07:57 AM
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SS,

Yes, the "fits all" gasket has a larger "bore size" for the larger bore engines. The water holes etc. are all in the "same" locations.

You give up about 3 CCs.

Jim
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Old 06-01-2013, 10:28 PM
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this victor reinz gasket looks good
Mystery Pontiac 350 400 Head Gasket Victor 95-3397VR - Scott Henshaw
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