Stage 5 Hemi conversion heads

Not that I know of I cut apart a set of Smitty Headers that where for a B-Body to make my headers. The Stage 5 heads use sixteen bolt flanges not the standard eight bolt flange which makes them harder to find headers for as well
I have access to a water jet and can make raised port flanges using a gasket as a template. What else will l need to do?
Wanna sell me a set of headers??
Will they work in a 4 speed car?