vegasmax

Have a 2008 and looking to swap in a 351W 408 engine.
My questions are on the wiring using a ford harness.
Question: What would work the best using stock harness?
I am looking at one out of a 2000 5.0V8 Explorer I know it will work, how much can I use from the 08 harness? It has a v6 in it now?
Next question is on the intake I want to use a better stock one, the 302 in 2000 had the GT 40 upper & lower...with the GT 40 upper bolt on the 1991 351 lower EFI intake? With or with out modifications?
Suggestions helpful anyone does this swap ?

Thanks

pascal

You'll have to start from scratch on the wiring as nothing is compatible.
Just use the 2000 harness and ECU or better, see if you can get everything from a 91 out of a junk yard.
Your upper intake will bolt to the lower 302 intake without modifications.

For a 408 though, those intakes might be too restrictive. You'll have to do some research on that...