Proactive Upgrades

Prepping the 6.4l Power Stroke for High Miles

- Mike Mcglothlin

Roughly eight years ago, the industry took note of the rocket ship nature that was a tuned 6.4L Power Stroke. With a factory compound turbocharger arrangement, a Siemens common-rail fuel system that outflows comparable Bosch systems by 20 percent, and a stout TorqShift transmission that can easily handle 600-rwhp, there is a lot of bang for the buck to be had in the ’08-’10 Fords. However, over time this engine has proven nearly as problematic as the 6.0L it replaced in terms of durability—and its repair costs are twice as much.