1938, Continental introduced the A50, an improved version of
their ground-breaking A40 of 1931. In early 1939, the A65
introduced refinements that allowed increased horsepower for the
The military designation for the A65 was the O-170.
|4-cylinder, horizontally-opposed, air-cooled
|Displacement: 171 cubic inches (2.8 liters)|
|Bore x stroke: 3.875 x 3.625 inches|