Swapping in a more powerful 4wd engine
I have 03 Ford Explorer 4.6L. What’s a better engine I can
put in it?
If you put the 5.4 make sure it has the redesigned heads that have the increased threads for the spark plugs. You don't want to blow your plugs with the original designed heads.
What is the powerful engine I can put in a 1999 Ford Explorer Eddie Bauer without change the heads and everything from a 4.0 to what