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how much do i mill the heads to get 11:1

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Old 03-17-2012, 12:30 PM
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Default how much do i mill the heads to get 11:1

i have an lq4
232/240 .598/.608 115 comp cam

im running the 317 now, so my compression is lower

was gonna boost it. this year.. but looks like it will have to wait...

i want to pick up another set of 317s or 243 and mill them down to the correct chamber size to achieve 11:1
im also running the ls9 head gaskets

what would the correct chamber size be for this?
Old 03-17-2012, 01:00 PM
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http://www.wallaceracing.com/cr_test2.php
Old 03-17-2012, 04:56 PM
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Ok... any one that can calc for me...
Old 03-17-2012, 06:14 PM
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bore-4
stroke-3.662
Stock dish piston-6.7
ls9 head gasket-.051
deck-.000
cylinder head-57
thats ends up with a 11.05 cr
Old 03-18-2012, 01:33 PM
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Thank you




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