Others may have but I had never heard of Henry playing with this....
One of Henry Ford’s odder inventions—and one that certainly challenges the notion he only ever wanted to build Model Ts into perpetuity—
Ford’s interests in the X-shape engine, which essentially uses two 90-degree V-8s V-4s turned on their side and mated on a common crankshaft, dated to about 1920, when he filed for his first patent on the design, noting its compactness, relatively high power-to-weight ratio, and suitability for air-cooling as its advantages. Indeed, according to The Henry Ford’s page on the X-8 in its collections, pictured above, it measures just 17-inches wide, 17-inches tall, and 14-inches deep.
The L-head example above, however, is far from the only X-8 engine configuration Ford experimented with. As pointed out in a 1973 Special Interest Autos article, it was one of seven experimental X-8 engines—and 58 experimental engines total—once left to sit in a sugar beet mill building on the Greenfield Village campus. While records for the experimental engines were incomplete, the seven X-8 engines include both air-cooled and water-cooled L-heads as well as at least one aluminum air-cooled overhead-camshaft version.
Ford might have conceived the X-8 concept, but he trusted development of the engine to Eugene Farkas, who worked on it for the next six or seven years, until it became evident to those surrounding Ford—and eventually to Ford himself—that the X-8 would never replace the Model T’s four-cylinder engine (due in no small part to reports that the lower spark plugs fouled often). Ford instead turned his attention to developing an inexpensive V-8 and abandoned the X-8 altogether.
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss