The 3.5L EcoBoost engine has been around long enough that there are several performance upgrades owners can choose from. Here are six of the best to consider.

It's the Essex V6, whose first iteration saw use in various Ford of Europe models. A few years after its axing, Ford resurrected the Essex name for use in their V6 engine family used in the Americas.

After our first sampling of the latest Ford F-150, which received four brand-new engines for the 2011 model year, we signed out the two V6 offerings as the ones most worthy of buyer's consideration.