After watching the movie "T-34" last night, I got interested in what type of powerplant those tanks had and looked up some specs. The engine, a Kharkiv model V-2 according to Wikipedia:
Displacement 38.8 L (2,367.7 cu in), bore 150 mm (5.9 in), stroke 180 mm (7.1 in) left cylinder group and 186 mm (7.3 in) right cylinder group, torque 220 kgf⋅m (2,157.5 N⋅m; 1,591.3 lbf⋅ft).
Is this right? The right cylinder group has a longer stroke than the left group? If this is correct, what would be the reason to build something like that, and were any other engines built that way?
TIA for any answers!