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.

Engine output increased because Ed Johnston's engineers designed and tested new cylinder heads, intake manifolds, and pistons. He added a water pump, which greatly improved engine cooling and lubricant life.
Photo by Randy Leffingwell