I have a 2.4l 91 dodge ram 50. Will a 2.0 cylinder head fit on my engine block? Will a 2.6 cylinder head fit on my engine block?

The reason I ask is because I can get a really good deal on a cylinder head, but the person selling it doesn't know what size engine it came off of or what year truck it cam off of. All they know is that it came off of a 4x4 dodge ram 50

Any help is greatly appreciated