Generation III Internal Engine 1997-2006 LS1 | LS6
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Old Jul 1, 2006 | 04:01 PM
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Default Stock LS6 Heads

Worth upgrading my stock LS1 heads to some LS6 heads? I don't have the funds for Patriots etc.. but i would like to do some upgrading there so i can officially have a cam and heads car and hopefully be over the 400rwhp mark. What would you guys pay for new or used LS6 heads? Thanks.

PS: I hope this is the right section for head info.
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Old Jul 1, 2006 | 04:02 PM
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I got mine for 425 shipped I think they flow like 20-30 cfm more at .600"
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Old Jul 1, 2006 | 04:48 PM
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So worth the upgrade? or should i hold out for bigger and better things?
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Old Jul 1, 2006 | 05:41 PM
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Originally Posted by 99camarosupersport
So worth the upgrade? or should i hold out for bigger and better things?

they are worth it if you are going to do the install yourself...

When you are ready for better heads then sell your LS6's...
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Old Jul 2, 2006 | 03:11 AM
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They will obviously be better than my stock ls1 heads, i'd like them to put me over the 400rwhp range but i'm not sure if they are worth 425 or not for what they are or even if they will put me over 400 to the rear. I guess i could buy some and have them machined someplace in time. Aren't all of the AFR etc heads stock LS6 heads they machine and slap their names on? BTW, yes i would be installing them myself.
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Old Jul 2, 2006 | 08:47 AM
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Stock LS6 heads not only flow better, but they also slightly increase your compression.
Stock LS1 heads: 66cc Combustion chambers
Stock LS6 heads: 64cc Combustion chambers
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