The ultimate aero engine for a competitive Voiturette race car or cycle car - Henderson-Heath Aero Engine, 1.4 litre, 30 hp @ 3000 rpm continuous. Total engine weight 100 pounds. Light weight all aluminum carburettor and intake manifold. All aluminum magneto with impulse for ease of starting. Precise vernier to set the magneto advance within one half degree or less.
There is no wear on this engine anywhere and by all metrics it presents as new.