What type of engine is best for heavy duty use in a Ford Transit Custom?

I am planning to buy a Ford Transit Custom for my construction business and I need to know which type of engine is most suitable for heavy duty use. I am looking for an engine that can handle long distance trips with heavy loads. Can anyone give me some advice on the best engine option for my needs?

I highly recommend the 3.5L V6 EcoBoost engine for heavy duty use. It has the power and torque you need for hauling heavy loads and is more fuel efficient than a larger engine.

If you're concerned about fuel efficiency, the 2.0L EcoBlue diesel engine is a great choice. It has a lower horsepower than the V6, but it still has enough power for heavy duty use.

I've been using the 3.2L Duratorq diesel engine in my own Transit Custom for years and it's been great for heavy duty use. It has plenty of power and can handle long distance trips with ease.