I did a Hemi that went to Australia or some place like that and it came in with its own parts. It had stamped gaskets like that.
There was a problem with the stamping that made the gasket leak, and it wasn't a problem that could be fixed.
That style gasket works by trapping air in those channels and as the head moves away from the block when the cylinder fires (they all move, that's why you need the gasket) the gasket should move with it to keep everything sealed.
One of those channels on that Hemi gasket was stamped so it fed coolant right out the back of the head. The other gasket wasn't that way. Evidently, there was an issue and some bad gaskets made it out to market.
Look very close at what you have. Follow all the channels and see where they dead end, and they need to dead end. If that channel opens to anything that will be your leak. I'd change them both out anyway.
FWIW I was working with Fel Pro gaskets and had to get an engineer on the phone to explain what happened.
Never got a penny from the customer to change out both gaskets. After that, the customer used my parts, and not junk **** he brought in, or I gave him a list of other local shops who would love to do their work.
