I found some figures on boeing.com. Here they are. The matter is that:
I don't know which ones are the -B1, -B2, -B3, ... if they are equal (renamed) of other versions
And for all of them if they are still under study/to be launched ever.
Model Thrust MTW (Max Taxi Weight) 777-200 777-300
GE90-B3/-B4 74,500lb 537,000lbs -
GE90-B5 76,400lb 537,0007lbs -
GE90-B1 84,100lb 634,000lbs -
GE90-B4 84,700lb 634,000lbs -
GE90-92B 90,500lb - 662,000lbs
GE90-98B 98,000lb - 662,000lbs
Scope and introduction, D6-58329, July 1998, www.boeing.com
"GE is developing the GE90-100B for the Boeing 777, with the engine derated in service to 98,000 pounds thrust. Also, GE will offer airlines an upgrade kit which can take all GE90 models to the 100,000 pound thrust configuration." GEAE
Does it mean the GE90-100B was (is?) to be both available with 100,000lb and 98,000lb max thrust?
Photo © Pierre Lacombe