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I'm very impressed with the smoothness of the 6.4 at idle. With the hood open and the engine running, I can put a finger on some part of the engine and feel really no vibration. Amazing! My 6.0 was not like that. Good job International.
I would have to say that I really like the engine. Runs great, and even better with a tuner. The ride and options on these trucks are wonderful. With a doubt, this is the nicest truck I have ever owned!!!
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.