John spotted this article on some unusual engine installations! Lawnmower engines in M-38A1s. Were these jeeps at the Great Willys Picnic?
https://jalopnik.com/this-wrenching-genius-installed-lawnmower-engines-into-1835417201
Here’s one example:

FROM THE ARTICLE ON JALOPNIK: The [lawnmower] engine has been mounted onto some sort of platform, which is mounted to the frame. The 670cc unit sends power from its output shaft via two belts to an intermediate jackshaft, which then transfers power via two other belts to pulleys on the input shaft of the original T-90 three-speed manual transmission.






















