LS2 Head Comparo
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If i'm not mistaken the LS2 head is the same as the LS6?? I'm going to buy a set of Dart Pro 1 225's...which have a 62cc combustion chamber as compared to 67cc for the LS2. If the LS2 has 10.9 cr and I use the Darts with a stock gasket where would that put my CR? Could I still run 93 octane?
Thanks,
Rich
Thanks,
Rich
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Originally Posted by saywhenn94
If i'm not mistaken the LS2 head is the same as the LS6?? I'm going to buy a set of Dart Pro 1 225's...which have a 62cc combustion chamber as compared to 67cc for the LS2. If the LS2 has 10.9 cr and I use the Darts with a stock gasket where would that put my CR? Could I still run 93 octane?
Thanks,
Rich
Thanks,
Rich
Everything else the same, you will get an 11.29 compression ratio with the 62cc Darts.
Last edited by 405HP_Z06; 04-09-2007 at 08:01 PM.
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LS2 has a 64cc combustion chamber. To know your true CR you will need to know piston to deck clearence. Mine was .005 out of the hole. The majority of people go with a .040 gasket to avhieve a tighter quench.
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Originally Posted by HEMIETR
LS2 has a 64cc combustion chamber. To know your true CR you will need to know piston to deck clearence. Mine was .005 out of the hole. The majority of people go with a .040 gasket to avhieve a tighter quench.
I guess it depends on if you want to know theoretical or actual compression ratio.
Last edited by 405HP_Z06; 04-09-2007 at 08:02 PM.
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So then 93 octane is still doable? When the time comes i'll measure piston to deck at all 4 corners to see exactly where i'm at. So I should come in around 11.3:1 with a stock gasket?
Thanks,
Rich
Thanks,
Rich
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Originally Posted by saywhenn94
So then 93 octane is still doable? When the time comes i'll measure piston to deck at all 4 corners to see exactly where i'm at. So I should come in around 11.3:1 with a stock gasket?
Thanks,
Rich
Thanks,
Rich
See attached file for CR calculation.