Check out this link...
http://www.bath.ac.uk/~ccsshb/12cyl/
Some facts on the 14 cylinder version:
Total engine weight: 2300 tons
(The crankshaft alone weighs 300 tons.)
Length: 89 feet
Height: 44 feet
Maximum power: 108,920 hp at 102 rpm
Maximum torque: 5,608,312 lb/ft at 102rpm
This is the crankshaft...