Kinner B-5 was a enlarged K-5
with the bore increased from 4.25 to 4.625 inches and stroke from 5 to
The U.S. Military designation for the Kinner B-5
was the R-440.
|Five cylinder, air-cooled, radial|
|Displacement: 441 cubic inches (7.2 liters)|
|Bore x stroke: 4.625 x 5.25 inches|