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What is my compression ratio with Patroit stage 2 heads

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Old 09-02-2004, 04:10 PM
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Default What is my compression ratio with Patroit stage 2 heads

If my stock compression is 10:1, will that change at all with the Stage 2 heads or stay the same. What would it be with the 5.3L heads...


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Old 09-02-2004, 04:19 PM
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whats your cc size? figure that out and check it against the sticky
Old 09-02-2004, 04:37 PM
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Originally Posted by speedo
If my stock compression is 10:1, will that change at all with the Stage 2 heads or stay the same. What would it be with the 5.3L heads...


Thanks,
Depending on whether you get the LS6 64cc or 59cc, the ratio will be about 10.5-1 (64cc), 11.4-1 (59cc). Our 5.3 heads heads will give approximately 11-1.
Old 09-02-2004, 05:31 PM
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Originally Posted by GUNNAR@PATRIOT
Depending on whether you get the LS6 64cc or 59cc, the ratio will be about 10.5-1 (64cc), 11.4-1 (59cc). Our 5.3 heads heads will give approximately 11-1.
I have the Stage 2 66.67cc heads I think with the Perimeter bolt pattern. If I would have gone with the 5.3's how much more HP would I have gained over the 66.67cc's? Did I make a mistake....
Old 09-02-2004, 05:41 PM
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The Patriot heads will give you 11.2 compression(59cc) LS6 style.The 5.3L heads will give you 10.7 compression ratio.This is using stock gaskets.This can change depending on the head gasket being used.




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