Be patient on a response back through email only. I bought these from an estate, the guy did have an early bronco with manifolds on it, so I assume that's what these were for. Comes with collectors. Ends have some rust damage. Never mounted on an engine. I didn't see a brand or any markings on them. I believe his was a small block v8. Not sure what transmission it had. I usually only check email once a day but not on weekends. Cash only.