Originally Posted by
frieghtdog2000
I doubt they will make freighter conversion - wrong engines.
It won't be the engines - Cargolux has a large fleet of RB211 powered 747-400F. In fact, about 15 years ago Cargolux wanted to buy another six 747-400Fs with Rolls engines, but Rolls had shut down the RB211 line and wasn't interested in starting it up for another 24 engines (Cargolux instead got PW4000s).
Rather, I think the BA 747s are unlikely to become freighters simply because they are already very high time - most already over 100,000 hours. Heck, IIRC, that BA 747-400 that knocked down a building in Joberg was around 108,000 hours - and that was several years ago.