I have a 1970 F-100 with the original 302 that I am building a custom 2” exhaust for. It has the original manifolds on it, and I am wondering what type of flange, gasket, or donut mates up to the manifold. I do not have the original piping, and I can’t seem to find much information on this. Any help is appreciated.

- Thanks

 

Pics please. I believe it is just a standard exhaust oipe that seals to a convex seat on the manifolds.