Fuel system is different. You'll need to use your old fuel rail for sure.

I'm sure there is plenty of other things but I dont know enough to tell you.

Are you doing a complete engine/drivetrain swap, or just the shortblock?

Tony 1998 SVT Contour (B/MB) #542 3L 1998 SVT Contour (SF/MB) #1266 parts car 2000 SVT Contour (SF/MB) #1533 3L swap to begin!