The History of Farmall Tractors: 1930-1935

In order to keep up with the progress of competition, Ed Johnston proposed improvements to make the Farmall a better tractor. Discover the changes that occurred to create more modern, small-scale F-20s, F-30s and F-40s.

The F-20 was the successor to IHC's groundbreaking row-crop Farmall. With internal engine changes and new exhaust manifolds, engineers initially pushed 20 percent more power out of the engine. Test results using various other fuels often showed more of an increase than that.
Photo by Randy Leffingwell