1,647 cubic inches translates to 27 liters. That’s the displacement of the Rolls-Royce Meteor, a V12 engine developed during World War II for the likes of the Challenger, Cromwell, Comet, Centurion, ...
I've said it before, and I'll say it again. The sky is not the limit. If everyone had universally agreed to that, we would have not ventured out into our Solar System. Sure, not everyone that dreams ...