Join Date: Feb 2009
Location: From ORK, live LCY
Programs: BA Silver, M&M*G, HH Gold, ABP, Seigneur des Horaires des Mucci
Posts: 14,919
That's plenty of time to connect. Even though the airlines probably won't interline your bags, you should not have any issues.
It should be possible to get a ticket from SFO-LHR-ZRH with a stopover on one leg in LHR, although the cost of that could be a bit of a wildcard.