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Generation III Internal Engine 1997-2006 LS1 | LS6
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Compression question

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Old 03-01-2009, 05:49 PM
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Default Compression question
I have searched through a lot of threads and havent found what im looking for so someone help me out on this.....


Compression???

GM Iron 408 block
-2cc diamond pistons

looking to do PRC L92's

what cc heads would I need to get to be around 11.5 or so?
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Old 03-01-2009, 05:54 PM
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Originally Posted by TOPPITS
I have searched through a lot of threads and havent found what im looking for so someone help me out on this.....


Compression???

GM Iron 408 block
-2cc diamond pistons

looking to do PRC L92's

what cc heads would I need to get to be around 11.5 or so?
66cc head that is with .051 gasket thickness and a 4.1 bore (aka ls9 headgaskets)
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Old 03-01-2009, 06:35 PM
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My bore is 4.030 so would that be much different?
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Old 03-01-2009, 09:35 PM
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when you said 408 i already factord that in.
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Old 03-02-2009, 07:12 AM
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oh cool....thanks...i was dishectic yesterday
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