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#1
12-11-2017, 12:03 PM
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6X-8 Heads - CC at 109 ???
I acquired a 455 motor with 6X heads while looking it over I noticed that both heads have been stamped 109 CC. That seems to be a large chamber volume for 6X-8 heads. My other set came back at 101 CC after valve job. So questions: How do you get 109 CC from 6X-8s? The heads have been worked on supposedly by a Pontiac shop. Any one know what shops stamp the CCs on heads?
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