Nope, they'll bolt right up. :thumbsup:PCD said:Is there a problem using my 97's shortie headers with 97 F-150 heads?
That's correct, as the ports are shaped differently. However, the MN12 manifolds will indeed bolt right up to the splitport heads. I know what I have on my own car.PCD said:Rod,
Advance Auto strikes again. My buddy who still works there said that the mainfold gaskets were way different according to the information he has at work to research with.