Rover V8 Engine Stainless Steel STUDS (With Inset Allen Key) & Plain Nuts With Washers To Fix The Sump Pan Onto Your Rover V8 Engine. Sump Studs And Plain Nuts. RV8-1.4.4 Rover V8 Engine. The Studs Have Plenty Of Length To Wind Into The Crankcase And Get The Nuts On.