Our Photo Editor, Sam Murphy, sent us a link to this amazing working Chevy V8 motor model, emailed to her by her dad (thanks, dad!). The model engineer is Jim Moyer, and he has several breathtaking models on his site. This V8 is 1/6th scale, based on the 1964 327 cu. in. Corvette engine. The AA battery gives you some idea of the minute (1.10 cu. in.) size of this thing.
1/6th Scale Chevy V8 [Thanks, Sam!]