Not sure what cross referencing you're asking for.
The 19 cid is indeed a 8 hp in most cases. I don't recall what the specific remaining number were but some were made as 10 hp and designated as Gen-Power. Maybe someone can relate those specific numbers. The top of the head will tell you if it is a 10 or 8 hp. The top around the plug of the 8 hp is flat where the 10 hp has a raised dome surronding the plug. The 10 hp is a higher compression head and it was built up around the thinnest part, the plug area, to strengthen the head so the increased compression would blow the top of the head off.
Nevada! The last free state!
Retired Briggs MST, Honda Top Tech.
Currently full time experienced novice fisherman.
You should've been here yesterday, the fish were really biting..