Wonder if they throw in a bottle of Hennessy? A supercharger and a tune. The kids are going to love Dad! All we had growing up was a 118 HP Pontiac fake Woody wagon. I think it had a bad valve or lifter too. Talk about slow. I remember my older sister having to floor it to get to 70 mph on the 101. Let's see 5.4, start with 310-320 hp, add a supercharger, K&N, a 92 octane tune, and your sneaking up on 450 ponies! Now that would surely pull my highway 1 South grade near me. Better drink the Hennessy after you or the Mrs picks up the Kiddies.
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The truck is stamped 500 hp / 525 ftlbs. It really doesn't feel lime that much but it is a whole lot faster than the rest of the Expedition/Navigator that I tested.
Things I like about the truck:
1. Every gizmo on the truck seems to work which is alot on a Limited model.
2. Shifting is very smooth and it runs great as a daily driver.
3. Truck is overall in great shape and was bought with just over 65k miles
4. 36k mile warranty (purchased seperate) and reliable Eaton blower.
Things I don't like:
1. It gets around 11 mpg and requires premium. Yes, I know it is 6000# truck sitting on 285/55 20s, but damn.
2. The tune could have been done better imho. It seems to surge unexpectitely at times and not kick in much at all other times.
3. Last owner was kind of an idiot. He clearly took a bath on the truck, but the things that bother me is that he lost the 2nd key, lost the key that locks the hitch into the reciever (dealership said they would drill it out when I get my plates), and he added a bunch of blue light stuff that sort of just hangs there. There is also an added module that NOBODY knows what it does. It also just hangs by the console. I am afraid to just snip it off as it may be security related.