Engine swap on 5.4
Yep, sure you can. But if your regular gas engine is still good the expense is not worth it. But can be done. See this: "It could, but why would you want to? Fuel mileage with E85 is significantly less than what you get with gasoline, so you're using more E85 to go the same distance you would using gasoline. http://www.f150online.com/forums/v8-engines/283946-04-5-4-liter-flexfuel-conversion-possible.html
Are you wanting flex fuel capability or just a new engine?
I'm just in need of a new engine and was curious if the flex fuel could be installed ?
The flex fuel and gas engine are about the same as far as internal components, if you use your non flex fuel injectors, sensors, and bolt ons it should work okay.
Ok thank you very much for the info much appreciated.
Did you end up doing the swap
If so how did it work out I have a 2005 f150 lariat 5.4 siezed motor and looking at a 2007 flex fuel for a donor and don't know if it works
the only difference is the injectors I think. I have done engine swaps on Taurus's and found the intake and injectors to be different.
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