Single 1967 3904391 cylinder head that is freshly rebuilt. The month was not cast when the head was cast, all that iscast is 20-6. The only 391 cylinder headscast on the 20th during 1966 calendar year that I have seenwere allcast I-20-6. Head has stock 2.19/1.72 valves, intake and exhaust ports untouched. Head has been surfaced in the past, head has no helicoils. Looks like one valve cover boltwas broke off and removed at some point, shown in pic with Hi-Perf. Threads are a little boogered up, bolt threads in but is loose till it gets in3/4 of theway. Shipping will be a flat $80 in the lower 48 states.

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