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Milling ls6 heads to get 10.5-11 to 1

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Old 12-16-2011, 11:57 PM
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Default Milling ls6 heads to get 10.5-11 to 1
Heres my set-up, I have a set of ls6 243 heads & a torquer v2 cam with a FAST 102. Motor is a iron block 5.3 that has been bored to ls1 specs. How much should I mill my heads to get around 11 to 1 compression? Will I be fine with PTV clearence? Is it worth it to have them milled?
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Old 12-17-2011, 03:03 AM
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Mine (PRC 2.5 243's) were cut to 61cc I believe to get 11-1 .
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Old 12-17-2011, 11:07 AM
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I have gm performance cnc'd milled ls6's. Gm mills them 55 thousands. 11.2.1
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Old 12-17-2011, 02:21 PM
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Whats a safe compression to run 93 octane
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Old 12-19-2011, 12:29 AM
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Bumpss
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