Classic Tractor Engine Modifications

Manufacturers have made great advances in tractor engines over the years.

As part of a demonstration conducted by Purdue University and the Indiana Agricultural College, three 30-60 OilPull tractors were coupled to a 50-bottom plow. Together, they turned over nearly 60 feet of soil at each pass, or an acre every 4 1/2 minutes. Obviously, the demonstration caught the attention of everyone interested in power farming.
Photo by Ralph W. Sanders