The passenger manifold in your pic is a 273 manifold and only had a 1 5/8" exit hole so I normally don't buy them or sell them. The top manifold is also 273 (driver) and has the 1 5/8" hole. These came stock on the pre '67 A bodies. These are needed by early A owners who swap their /6 for a V8!! I come across them once in a while. If there was more demand for them I would buy them and sell them.