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Generation III Internal Engine 1997-2006 LS1 | LS6
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Low comp 422?

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Old 05-03-2003, 11:30 AM
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Default Low comp 422?
Does anyone have an idea how much rwhp a low compression 422 could make? I was thinking on a 6.0 block, .030 overbore, 4.125" crank, about 8.5:1 to 9.0:1 pistons, ported/polished 6.0 heads, and mild cam.

I figure somewhere around 400-450rwhp...

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Old 05-03-2003, 02:15 PM
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Default Re: Low comp 422?
Well I'm gonna say that an 11.5:1 422ci will make 480rwhp.

So, figure for every point in compression you drop that will be about 2-3% hp.
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Old 05-03-2003, 09:26 PM
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Default Re: Low comp 422?
Okay thanks for the reply. Just trying to figure out what exactly I am looking at...
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