American Flyer die cast Atlantic conversion

Carey, interesting post showing how modelers/operators were modifying the American Flyer engines. In 1938 Gilbert introduced that diecast engine made in two variations. The 4622-4 and 4622-6; one an Atlantic, one a Pacific. The shells were identical, the Atlantic had four large drive wheels, the Pacific, six small drive wheels.

These engines did not last long because in 1940 Gilbert initiated the change to 3/16th scale engines beginning with the Pacific, Hudson and Northern. In 1941 two more 3/16th scale engines were made, the 0-8-0 switcher and the distinctive Atlantic with the Wooten firebox. By 1941 all the engines made from the carryover tooling from Chicago were gone.

The two potential sources I know of for O gauge AF parts are Hennings Trains and Port Lines.