360 oil pan gaskets….One piece, 4 piece??

Magnum 360 one piece gasket will not fit an older block and pan. I learned the hard way.
Like was said the corners are way off.

And the rear does not accept the older pan profile correctly. It just pushes out.

Mine leaked like the Exxon Valdez for years until I took it apart and put the original style in.

If you got your heart set on it, just cut the side rails to mimic the cork ones. Of course that’s back to a 4 piece.