The head gasket I purchased which is made mostly from some non-ferrous material, does not have any marking as to which side goes to the head and which to the block. One side of the gasket has what appears to be a light duty metal rim on the cylinder openings. The other side of the gasket also has a metal rim in the same place. But there is also a continuous piece of metal surrounding all the cylinder openings. On that side, there is also a small, rectangular opening on both corners of the rear of the gasket. The first side no metal rim. On the second side, there is a metal rim.
I am uncertain which side goes to the block and which to the head.