Stop in for a cup of coffee

Petty Betty said
Ok I have a question. I want to eventually swap out the headers for a manifold. I have a 318 in my dart. I found these on marketplace place. 1973-1976 Mopar “A” Bodies | Mopar exhaust maniford great shape went with headers instead | Facebook
It says small block but is there anything else I should be looking for in regards to fit?

I will say this and I could be wrong and I know someone will help out especially if I am wrong. 1973 started with the spool type motormount and to be honest it won't matter really