I'm getting ready to start ordering parts for a port matched 3l swap me and my brother are doing into my 99 svt. I'm about to pull the trigger on a motor. I've got it narrowed down to two. The first is an '04 taurus motor with 50k for $690 shipped and the other is an '03 with 55k for $600 shipped. Are their any major differences in these two engines as far as the swap is concerned? Is there any reason for me to get the more expensive '04 engine? Thanks alot for the help! Look forward to finally being active in the CEG forum!!