For many years we were asked to produce a twin cylinder horizontal engine, the Stuart Score was the answer. It is closely related to the Stuart D10 but is distinctive enough to be attractive in its own right. As with all Stuart Models finished engines it is supplied ready to run complete with a hand numbered certificate of authentication. Engine Description: Stuart Score Ready to Run Engine. Specifications: Length: 6 Inches. Flywheel: 3 Inch Diameter. Bore: 3/4 Inch. Stroke: 3/4 Inch. Contents: Cast Iron: Boxbed, soleplate, cylinders, valve chests & covers, top & bottom cylinder covers, flywheel. Brass: Slide valves, pistons, connecting rods, eccentric rods, valve operating blocks, glands, crossheads, crankshaft bearings. Steel: Crankshaft, crankwebbs, eccentric sheaves, crosshead pins, piston & valve rods. Sundries: Detailed drawings, gaskets, cylinder lagging, gland packing, fixings pack. Manufacturer: Stuart Models Model / Part No: Score Ready to Run Models (34-50-71218)