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Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

stock lq9 with 317 heads

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Old 08-05-2012, 09:16 AM
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Default stock lq9 with 317 heads
I assume the compression is stock 10to1

what head gasket thickness is stock?

If I put on ls9 head gaskets what will the compression drop down to be?

thanks
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Old 08-06-2012, 04:10 AM
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.051 stock thickness. I believe the ls9 gaskets are the same. Not sure on bore. Your compression will not drop much.
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Old 08-06-2012, 09:10 AM
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thanks, so How can I drop the CR to a max of 9.5?
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Old 08-06-2012, 09:33 AM
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Have the chambers enlarged or install boost pistons.
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Old 08-06-2012, 09:34 AM
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Or sell it, buy an lq4 and pocket the rest.
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