340 manifolds mate for passenger side

I picked up a 340 exhaust manifold for the drivers side casting #2863553 for $170. Now i am looking for a passenger side mate to it. Is this the good 92 magnum passenger side 5306618?

I have a passenger side 3418623-2. If it fits your needs, I would sell. I believe its 71-73 340. PM me if interested.