1994 ford mustang motor swap to a 2003 Ford mustang

There would be some work to be done. How much money did you set aside for the swap and are you doing all the work? The 94 used a 5.0L and the 03 has a 4.6L. You would also need the ecm, wiring harnesss, exhaust etc. find another 4.6L from a 1999 to 2004.

Yes ill be doing the work and i got money aside to do the swap just wanted to know exactly what would i all need to do the swap

You could swap it with enough work but it won't be legal.

Right, in some states, you have to use the same year or newer engine, not older due to emissions. I know if you are installing an older engine out of 94, you will need the K member and engine mounts as well to swap over. Wiring might be a challenge. Research it more before you pull the trigger. There isn't much out there, I checked. Most are installing the newer Coyote 5.0L engine into their steeds.

I got a 2003 ford mustang automatic and i was wondering if i could take the motor out and switch it into my 5spd 03 ford mustang