2003 4.6 swap

[mickeyshowers]

Hello all,

I've got an '03 Expo with 176 on the clock that just popped her first spark plug. Given the history on these heads, I consider myself lucky but it's time for a rebuild or a swap.

As long as I'm pulling the engine, I figure this is the time to try and improve the gutless nature of the 4.6

I don't do a lot of heavy hauling, but I do pull a 20' pontoon and it would be nice to be able to get out of the hole AND be able to cruise at 70 down the interstate.

My questions are:

What should I do to solve my towing frustrations? Does it make more sense to swap in a 5.4? Does that come with a bunch of issues? Are 'performance' crate engines available?

I thought maybe I would find some complete swap threads but most of what I've seen is 1st gen.

Thanks for the advice!

 

[stamp11127]

It depends on how deep your pockets are. Easiest would be to get a donor Expy with the 5.4 already in it and grab the parts you need.
If money isn't an object there is a thread on here concerning a V10 swap. "There's no replacement for displacement - especially if it is blown"