The Ford 3.5L EcoBoost engine is a twin-turbocharged V6 engine that is designed to deliver high-performance power and fuel efficiency. It is commonly found in Ford F-150 trucks, as well as other vehicles such as the Ford Explorer, Flex, and Taurus. With its advanced direct injection technology and turbocharging system, the 3.5L EcoBoost engine provides impressive acceleration and towing capabilities while also achieving better fuel economy than many larger engines.