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Exacct replica Knucklehead cylinder head set ( blank set ) 1940-1947 big port feature original cast iron. Head set include valve seats and Manifold srew nipple installed. Head set is black heat painted. Brand is manufactured by Motortechnic Mfg. in Germany

NOTE: Head are casted with date code plate and MC sign 

Replica Motortechnic Knucklehead cylinder head set 74 cu big port 1940-1047

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