I'm going to pick on the vintage iron gasser engine layout, when done here.
By the way, who is telling the old fairy tale about being used as a boat engine? Engine design is not made as a cold running engine. As can be seen on the alloy bearing carrier rings.
This engine was used with great reliability and success in austrian agricultural machines(Reform)under heavy load conditions.
Engine setup is different. Lower charger pressure and different cooling layout with a much lower red zone.
Did anyone recognized the manipulated engine coolant temperature display? It stays locked around 90° to 100°- in case of overheating the needle jumps suddenly to the red zone! This is not possible with a linear reading meter.