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Stock LS2 Heads and gaskets.

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Old 06-28-2005, 11:20 AM
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Default Stock LS2 Heads and gaskets.

I've been searching around and it looks like the stock LS2 combustion chambers are 65cc.

Does anyone know the size of the stock head gaskets?
Old 06-28-2005, 05:21 PM
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I'd be interested in these specs too. Anyone know of a good web site or possible published reference?
Old 06-28-2005, 05:28 PM
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They are ls6 heads.
Old 06-28-2005, 05:38 PM
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Originally Posted by redaddiction
They are ls6 heads.
I know that, but did they get the 10.9:1 from just the flattop pistons?
Old 06-28-2005, 06:06 PM
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Originally Posted by 93zm6tally
I know that, but did they get the 10.9:1 from just the flattop pistons?

Not sure about that but were you asking in your original post the bore of the stock gasket or the thickness ?
Old 06-28-2005, 08:08 PM
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Originally Posted by redaddiction
Not sure about that but were you asking in your original post the bore of the stock gasket or the thickness ?
Well, it was more thickness, but now that you mention bore... The bore is a little bigger on the LS2 that the LS6, so the gasket would be different right? Also, does that mean that the combustion chamber is smaller in diameter than the cylinder? Or are the LS2 heads slightly different than LS6 heads?

Just trying to find out the deck height and everything else to run a dynamic compression calculation.
Old 06-28-2005, 10:11 PM
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Originally Posted by tanglewood
Well, it was more thickness, but now that you mention bore... The bore is a little bigger on the LS2 that the LS6, so the gasket would be different right? Also, does that mean that the combustion chamber is smaller in diameter than the cylinder? Or are the LS2 heads slightly different than LS6 heads?

Just trying to find out the deck height and everything else to run a dynamic compression calculation.
The gasket thickness should be the same but the bore is 4.000 versus 3.900

The ls2 and ls6 heads are the exact same.



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