Here are some general specifications for the Caterpillar C7 engine:
Displacement: 7.2 liters (439 cubic inches)
Configuration: Inline 6-cylinder
Bore: 105 mm
Stroke: 127 mm
Aspiration: Turbocharged
Fuel system: Common rail fuel injection
Compression ratio: 16.0:1
Emissions compliance: EPA Tier 3, EU Stage IIIA
Max power: 164-324 kW (220-435 hp)
Max torque: 1000-1550 Nm (737-1145 lb-ft)