1971 LS6 454-425HP Square Port Heads
 

3994026 square port heads both dated I-9-71 and is stock condition. Heads were cleaned and magged and have one repair on a valve cover bolt which would not be seen with the valve cover on. Heads are a nice original set that came on 1971 LS6 optioned chevelles only for this model year. Only open chamber square port iron head desinged other than the aluminum 3946074 heads which I have a few sets of those if anybody is looking for them. $900 for the set with shipping included anywhere in the US. 330-770-2517 for any questions and can provided pictures with an email address.