Challenger Flathead V8 By Ron Colonna
Ignition: Spark
Bore: 1 in.
Stroke: 1 in.
Displacement: 100 cc
Max RPM: 6,000
This engine was built early in my gasoline engine building career. I received the castings and drawings as a Christmas gift from my wife. I had it running about five months later. This is the engine that creates the most interest at the shows. So much so that I’ve had to rebuild it twice because of wear. As designed, it had some major shortcomings.