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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
they are^^^they just have 1/2 holes for the head bolts........but to the OP if you came across a old set of c9oe or dooe heads all done up for a decent price it might be worth it, I got a set with larger valves, ported, screw in studs and o-ringed all for 300 beans a few years ago