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#3 |
Veteran Member
Join Date: May 2006
Location: Murfreesboro TN
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That's the "Stahl" pattern, Jere created it decades ago to allow easy installation of large tube headers on a small block head. Originally, there were adapter plates, with counter sun holes, and later, some cylinder head companies machined that pattern into the heads.
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Alan Roehrich 212A G/S |
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