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Old 04-09-2019, 03:49 PM   #12
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Join Date: Jun 2009
Location: Swampscott, 01907

Well the Greenbook says you can go 0.020" on a head recondition, so you can do at least that. Run that with a thinner head gasket and you can pick up a half point static or so. I run N/A and am over 2.5mm milled off, no problem.
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