In attempt to remove my exhaust manifolds today( why is the center bolt so tuff? I saw the marking on my head, it is ECZ-C are these the stock 272 heads, for my 56, f100?

Tommorow i get to try and get out the last bolt, with the rounded head, to complete my mission. Oh, and somehow figure out how to get the dipstick repositioned so that they don't interfere with the headers.

Mike

 I'm on a Lowwwww Budget