The $29.99 all-metal desktop Stirling engine kit is one ... For a more authentic kit, the 270-piece metal and plastic V8 engine kit features components found in a real automotive V8 engine ...
On the heels of a small stirling ... on the engine. It also uses propane instead of an alcohol or other liquid fuel lamp for the heat source. Next up is a pee-wee sized V8 engine by [stevehuckss396].