Think you’ve got enough horsepower? Think again!

The specs of this beast are -

42 cylinder radial engine of Russian origin with a capacity of 143 Litres (Zvesda / St. Petersburg )
42 cylinders heptagonal-star/6 cylinder rows
Diameter 160 mm, stroke 170 mm, capacity: 143.500 cubic centimetres
7 over head camshafts driven by shafts, central steer time adjustment
4 valves/cylinder, 168 valves operated by roller rocker arms one cam moves an exhaust valve and an inlet valve
Rotational speed: up to a maximum of 2500 rpm
Torque: about 15000 Nm (approx 11063 ft/lb)
Power: about 4500 kW (approx 6034 hp)
Fuel consumption: About 800 litres diesel/hr
Direct injection 9-hole injectors
Decentralized fuel injection pump, per cylinder pressure ~ 1.000 bar
Turbo compound: 1 step axial turbine and 1 step radial blower (pressure ~ 2,1 bar)
Joined with crankshaft via 3 parallel hydrodynamic couplings
Compressed air start system is at work with 150 bar compressed air on 2 cylinder banks (12 cylinders)
Dimensions: diameter 1.600 mm, length ~ 2.000 mm

And here are a couple more -