Here is a post-war civilian Go-Devil on display at the Walter P. Chrysler Museum. Significant differences from the wartime engines included a change from timing gears to a chain, head upgrades, and a new crankshaft. The casting number of this engine dates it to the ’46-’53 period. It could have gone into any jeep of that era. The most common compression ratio was 6.48:1, but an optional, high-altitude head delivered a 7:1 ratio.