General Information
5.4 seized so I bought what I thought was a 5.4 but it turns out that it’s a 4.6. Heard it run first and sounds great so I want to use it. From some other posts it appears that I need the 4.6 torque converter , the computer and maybe some wiring. Has anyone done this swap ? If so is this all I need or is there more ? Also why would I need the wiring harness ? Thank you