Mayb someone can help me out...

[diabloblanco]

A friend of mine was going to give me the 5.4l motor out of his 2001 f-150.... Does anyone know if it would fit into my 91 gt without major custom fabrication

 

[EHA Racing]

A friend of mine was going to give me the 5.4l motor out of his 2001 f-150.... Does anyone know if it would fit into my 91 gt without major custom fabrication

Yep they will go in nice. Just like putting in a 4.6L. I would get a K-member with mod mounts to make life simple.