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A 3.3-liter naturally aspirated V6 joins the lineup, while the existing EcoBoost V6 and 5.0-liter V8 have been retuned for higher output.

Ford has detailed several powertrain improvements for the 2018 F-150 and Expedition families.

The current 3.5-liter naturally aspirated V6 has been dropped in favor of a smaller 3.3-liter mill that benefits from a modern dual-port and direct injection system. The downsized powerplant brings a modest increase in output to 290 horsepower and 265 pound-feet of torque.

Engineers also reworked the company's 2.7-liter EcoBoost V6 engine for higher torque output, delivering 400 pound-feet (up 25 lb-ft) and maintaining outgoing engine's 325 horsepower rating. Vehicles powered by the turbocharged engine will also benefit from a 10-speed automatic transmission.

Dual-port and direct injection have reached Ford's venerable 5.0-liter V8. Output has been elevated to 395 horsepower (up 10 hp) and 400 pound-feet of torque (up 13 lb-ft).

Buyers early next year will be presented with a new 3.0-liter V6 diesel engine, paired with a 10-speed automatic gearbox to help minimize fuel consumption. The company is not yet disclosing specific EPA mpg estimates for the new diesel and gasoline engines, however.

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The automaker has confirmed power specs for the 2018 Expedition. The SUV will be available with two 3.5-liter turbocharged V6 engines, one with 375 horsepower and 470 pound-feet of torque and another with 400 ponies and 480 pound-feet of twist.

The new Expedition is slated to land in showrooms this fall.