Photo: Ford
For Super Duty trucks (F-250, F-350, F-450, F-550), the entry-level engine is a 6.2-litre gas-powered V8. However, the 6.7-litre turbo-diesel V8 does the job like no other by generating 925 pound-feet of torque. Properly equipped, it is capable of towing an astounding 34,000 pounds.