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#1
06-25-2026, 10:01 AM
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A 859 will fit pass car heads from 61-64 and 127 and 980 SD heads.Might require a small port match.The early 62 heads had a 55-60 water pattern so the 61-62 2x4 991 factory and over the counter intake had a removable freeze plug to allow it to fit early and mid years water patterns.Tom
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