Tested and bought them today. Thanks for the input.

made the gaskets for those a long time ago.... they were Klingerite 1000 material

Thanks northernoffshore good to know. Im sure i would never be able to find a replacement set. Did they make many of these headers and do you know when they were made?

Loading them up

i dont think they made more than a few pairs... i have only seen a couple of boats with them and i think we made some thing like 50 gaskets for them.....they would be easy to reproduce your self