1g head gasket set

Im installing a 1g head on my 97 gst. I bought the 1g head about 2 years ago and i dont remember what year car it came from. does the 1g head differ from 1g 6 bolt and 7 bolt engine?

I may be wrong but I thought the only difference between the two is some sensor, like the CAS or something.

Anyone else?

yes i realize between the 1g and the 2g heads are the cas sensor, and everything about the 1g is bigger and better. anyways.
im buying a upper headgasket kit for the 1g head. SBR asked me if the head is from a 1g 6 bolt or a 1g 7 bolt engine.
are the 1g 6 bolt and the 1g 7 bolt heads the same?