Just to let everyone know. Last week I fired up my Pantera for the first time since Oct 03. It sounded so sweet but very loud with the open headers. I still need to o a few things to get it on the road but this proves the 5.4 will fit in a Pantera with minimum surgery required (fuel tank).
Kinsler Independant Runner intake
Wilkinson 4.6 Headers and motor mounts
Accel Gen 7 engine management.
Thanks to everyone for their help with this project!