I have a 2008 ford f150 fx2 with a 4.6 in it. I want more horse power so a buddy said it would be better if i swapped a 5.4 in it. How hard would this be, or would it be more cost effective to juice up the 4.6. Just not sure there is much out there for it.

Thanks james

 

Im very interested if this would be a big deal since i already have the motor. i wanna use the same 4.6 harness im already tuned with the 5.4 tranny