Early 2000 Eclipse 2.4 engine will 03 fit
 

I have a 2000 Eclipse 2.4 with a 06/99 build date. Engine is bad and I have an 03 2.4. According to car part.com the interchange is different for build date before 8/1/99. My question is it minor things such as sensors etc or is the engine too different to swap? Engines look the same without pulling them. Thanks!