Yes.
No
A neon uses a 4 cylinder, an Intrepid uses a 6 cylinder, plus there wasn't a 1990 Intrepid.
Will a 2004 Dodge stratus motor fit into a 2003 Dodge intrepid car with a 2.7 engine?
The 1995 Dodge Intrepid has two motor mounts. One on the left and one on the right.
If same size, yes.
A 1997 Dodge Intrepid has two engine mounts and one transmission mount.
yes
No, a Stratus engine sits transverse, while the Intrepid sits front to back.
The Dodge Intrepid was always front wheel drive.
No. The 1997 computer system is completely different than the 1999 system.
5w30
No, it will not, design is much too different to make it feasable. For a 2000 intrepid you must use a 1998-2001 engine. Check out dodgeintrepid.net for a ton of info on these cars.