You might be a Motorhead if you have a piston from a 28 cylinder Pratt & Whitney R-4360 ‘Wasp Major’ radial as a coffee table ornament in your home. Doesn’t everyone recognize tasteful interior decorating when they see it?
Above, a R-4360 piston. Forget the 5.75″ bore, this engine had a 6″ stroke to go with it, and that piston had 27 angry siblings working with it, all fed by a combination of supercharging and turbocharging. Each piston is 156 cubic inches of displacement, the motor is seventy-one liters. This particular piston flew at Reno in the Unlimited Sea Fury “Dreadnaught”. It was a gift from a Corvair builder who was a member of the planes pit crew. The little piston riding piggy back is a 2,850cc Corvair piston.