100 years-old speed boat with a 400HP V12 engine start up and sound

400 HP V-12 Curtiss-Smith Engine. Max RPM 2,000, 1,650 CID, 1250 LBS. The engine was based on a prototype Curtiss Aeroplane and Motor Company V-4 airplane engine, four of which were built in Buffalo NY in 1916. The engine was put into storage in 1919 and reunited with this race boat in 2013. Engine rebuild done by Robert Mishko at Rockey Summit Performance.