I have a 2.4 in a 1st gen, so I will clear this up...yes, you can swap a SRT motor in....but you CANNOT use the stock computer, as was mentioned, the crank trigger setup is different, you must either use a standalone, or do some funky wiring with the SRT4 computer, that being said, its not worth it, just get another 2.4 spend $250 for some SRT internals, buy an SRT turbo and intercooler and voila you have a motor just as good for a lot less, as far as the stock neon tranny not being strong enough, thats complete BS, these trannys have been proven to hold over 500HP quite easily...its the clutch thats the weak point, for my motor I am using wiseco forged pistons, T2 rods, pretty large FMIC from jonnyracecar, running about 8 psi for now until I get my standalone(been having problems with the stock NA computer and potentiometer setup) I'm even using the stock 2.0l clutch for now, its held up suprisingly well to the abuse of around 220HP(when its actually functioning...stupid NA computer) but I plan on upgrading to a decent clutch, some stronger axles and an LSD later, in other words...very possible, but the SRT motor is about the most uneconomical way to go...only way to go that way is if your afraid to build a motor yourself, or if you just lack the skill