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Porsche's Love-em Live-em
Join Date: May 2006
Location: Waimanalo, Oahu, Hawaii
Posts: 2,018
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Just my two cent's
I heat the heads to 350 before doing the above. As Porsche recommends. That insures the thin casting around the valve guide boss in the intake ports will not crack or chip off. I learned this the hard way. You don't need to. Aloha, DS
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