[2][3] The engine was said to produce about 200–205 hp (149–153 kW) at 1,350 rpm, while weighing about 300–315 kg (661–694 lb).

The cylinder heads had integral cooling jackets and were cast from steel in pairs and then machined.

Each cylinder's exhaust and inlet valves were actuated successively from a single cam lobe on the overhead camshaft via roller tappets and rocker arms.

Two magnetos were also driven from the vertical timing shaft and were located between the two cylinder rows.

In order to circulate the engine coolant separate geared water pumps were installed on the respective side of the crankcase for each cylinder row.