Beware of one piece oil pan gasket for a Ford 460.....
I bought a Ford Motorsport one piece oil pan gasket for my 77 Ford 460 engine that is going into my 78 F250. The problem with this gasket is the two front and two back bolt holes are not large enough in the rubber coated steel insert.I though maybe I can ream it out with a drill bit just a tad bigger, wrong solution. The drill ended up snagging the steel when it was about ready to go through the other side. It then twisted the rubber around the bit tearing the gasket in half, while mangling the rest of the gasket. This kind of stinks since the gasket was $25. If you buy a one piece oil gasket and the holes are not large enough, send it back, don't do what I did and try to drill the holes larger.