If you want to go the whole hog you can fit a switch that is connected to the ignition circuit so that if the oil pressure falls below a predetermined pressure the ignition is switched off and the engine saved. Alternatively you could install a back up reserve cylinder that pumps oil round the engine if the oil pump circuit/pressure fails.
I like both those ideas Phil.
Best wishes,
Mike.
1954 Series 2: 4 door: "Sally" -- Back together, more flatting and polishing to come, now the engine just refuses to run properly.......
1970 Triumph Herald 1200: "Hetty" -- Driven back from Llangollen in Wales (twice.....)
1952 Morris Minor MM highlight with sidevalve engine still fitted, wants work, so joins the queue for now......