1955-Bob an my paper rout,made us think we could use some power,we only had pedal bikes at the time,so that gas lawn mower was just too temping and we put engine in one pedal bike/zooom Ha !But we really need more. Found a cheep old Cushman Pacemaker,an that worked for near a year,tell we got a crashed Indian 300 Motorcycle with bad bent fork. Now the 300 just had to replace the Cushman engine. And then too cars ,on an on has the game gone. Y-block in 28 Ford A,Olds Rocket 88 in 50 Henry J,ect.