Engine swap on 5.4


Asked by Jan 07, 2016 at 11:18 PM about the 2006 Ford F-150 FX4 SuperCrew Styleside 4WD

Question type: Maintenance & Repair

Can a regular 5.4 in a 2006 F150 be swapped out to the
5.4 flex fuel engine out of an 2007 F150?

9 Answers

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

3 of 3 people found this helpful.

Are you wanting flex fuel capability or just a new engine?

3 of 3 people found this helpful.

I'm just in need of a new engine and was curious if the flex fuel could be installed ?

3 of 3 people found this helpful.

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.

3 of 3 people found this helpful.

Ok thank you very much for the info much appreciated.

2 of 2 people found this helpful.

Did you end up doing the swap

1 of 1 people found this helpful.

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.

Can i swop a 98 f150 5.4 to a 2006 f150 5.4

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