Originally Posted by katytx
looking for stainless steel manifolds for my 1988 airstream 345 also coolant reservoir. just bought it and trying to keep as close to original as possible. thanxs jim
I take it you are talking about exhaust manifolds.
I would not use stainless for that purpose, too problematic for leaks. The problem is stainless has a expansion coefficient that is not compatible with cast iron. They change size differently with heat. It will leak, stick with mild steel headers or cast iron manifolds. You will have less trouble in the long run.
It is just too hard to change out blown gaskets on a regular basis due to metal movement.