B RB Ex manifolds interchangeable?

Hello, does anyone know if the centre dump exhaust manifold - passenger side - (eg 383, 440) will fit onto the driver side? I don't have an engine to test it on. It seems like it might ? If the ports and bolt spacings are symmetrical front to back. Has anyone tried it? I want to use two centre dump manifolds in place of the standard rear dump.

thanks
Author: 70Hardtop