Review on Patriot Exhaust H7871 Header 429 460 by Ronnie Dabolt

I am impressed with how strong the flange has been made. Although all of the bolt holes on my 1973 460 line up with the flange, the exhaust header holes do not line up exactly with the flange. I tried to flip her, flip her, whatever, I tried. To use these flanges I would have to relocate the flanges so I don't lose power because part of my exhaust is blocked. I only gave it 4 stars because it shipped pretty quickly and they're pretty thick so they're easy to weld onto the pipes.