1940 Guiberson A-1020 four-stroke diesel radial engine for aircraft and tanks. Rated at 310 HP (230 kW).
Fullsize image: https://diqn32j8nouaz.cloudfront.net...e_fullsize.jpg
https://diqn32j8nouaz.cloudfront.net...sel_engine.jpg
Previously:
https://www.homemadetools.net/forum/...772#post174983
https://www.homemadetools.net/forum/...539#post173982
https://www.homemadetools.net/forum/...406#post169719
https://www.homemadetools.net/forum/...992#post168156
https://www.homemadetools.net/forum/...006#post129749