2000 Neon 2.0 SOHC Engine Swap

Doing a SRT-4 Motor swap into your Neon, maybe even a 2.4... have questions about it, what you'll need or what issues you'll run into? Answers can be found in here.
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charlier12
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2000 Neon 2.0 SOHC Engine Swap

Post by charlier12 » Mon Mar 30, 2020 7:39 pm

Hey all. I have been reading through this forum and some others and now I am more confused and in need of some expert assistance.

Quick Info. My wife races a dirt race car which is a 2000 2.0 SOHC. So the engine just needs to be able to run, so any non-essential wires can be removed.

Anyways, after reading some post I thought I needed a Stratus 2.4L motor. So I bought a 99' from the junkyard. Well I am starting to think its not the right motor. The oil filter and neck interfere with the lower side motor mount. If someone can provide me a year and model I will exchange the motor for something else. I read an 01' Cruiser or any 2.4NA motor will work. The 01' Cruiser motor can use all the brackets, I assume. I will try to attach some pictures of what I currently have and thanks in advance for your help. Also sorry if this information is already available and I am just missing it.

Daryl
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occasional demons
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by occasional demons » Tue Mar 31, 2020 7:32 am

Pics don't work....


The 2.4 MUST be a DOHC. If it is a SOHC from a DSM Galant platform Stratus/Sebring, it will not work. It also needs to be '00 or older for the 1gn DOHC IM to be a direct bolt on.

The VIN must be 8th digit "X"

The PT is the best bet for everything to go smoothly. The brackets, exhaust manifold and oil pan are needed to make the swap into a 2gn mostly headache free.

The oiling system on the Stratus is not easily used in a 2gn.

The 2001 to 2002 head will a have slightly different bolt pattern on the intake and exhaust than the older heads. The exhaust won't be an issue, since you would be using the PT manifold. The intake manifold, if using a 1gn IM, will either need to be drilled to fit, or the head will need drilled and tapped to accommodate the 1gn IM.

Or you could fab a manifold to work, but not sure how that would work with class rules. The SRT intake manifold could be used, but the bottom end torque may suffer due to the large short runner design. It will be the simplest bolt on to the head, and should have no clearance issues, but the throttle body will have to be included. But the IAC will not work with the '00 PCM.

There is no simple way to just use the neon intake and throttle body with a 2.4 swap on 2nd gens, due to the SRT being the only DOHC option for those years.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
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charlier12
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by charlier12 » Wed Apr 01, 2020 1:00 pm

Sorry about that. I am new to posting pictures to forums as well... I made another attempt, trying to use Google Pictures

Also I greatly appreciate your time for helping.

The motor I purchased was a 2.4 DOHC. I was informed that the motor was a 99' so this is good if this is true. If the pictures work, you can see my issue during install. The passenger side of the motor has the oil filter below the crank. The filter will not allow me to get the motor into the car as it hits the frame. The SOHC oil filter that was in the car is in the rear of the engine. You mention that the oiling system from a stratus is not easily used in a 2gn. Is this what you are referring to?

I will check the VIN on the motor when I get home. I really cant tell from the pictures I took.

At this point I am better off switching this motor out for a PT Cruiser 2.4L motor, if I understand correctly. Still a 00' or older, correct?
If I understand correctly:
- The Intake manifold will need to be modified or the head will need modified to make the 1gn DOHC Intake Manifold work? Or is this just for 2001 and 2002 heads?
- Or Fab a manifold if class rules allow.
- If I make the above work, then the throttle body, IAC and PCM will all work from the PTC?

This is a huge help and once again I appreciate the assistance. I hope the pictures worked this time.


https://photos.app.goo.gl/u6pL7TgB5DxGfakc9

https://photos.app.goo.gl/JCDKaR9NtSsiJHPR7

https://photos.app.goo.gl/o21FijPvJdQs3JVS9

occasional demons
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by occasional demons » Wed Apr 01, 2020 6:48 pm

Daryl, I edited your post so it is just the picture links.

You can use a picture hosting service like Imgur, or Flikr to direct link pictures. Or just post the url's like I did above.

You can definitely use that engine, the '99 head should give you zero issues using a 1gn intake manifold.

The earlier heads have larger exhaust valves, and better flowing ports, so that is a plus.

The downside obviously is the oil filter location. Now, you could get creative, and cut the filter part off, and drill/tap for some fittings to use a remote mount filter. Or if room allows, use a filter adapter plate to attach lines to for a remote mount.

Also, if I recall correctly (IIRC), I think there is another version of that oil pump that places the filter differently.

Or you could pull the oil pan, oil pump, pick up tube, and any other related stuff off of a PT and swap it onto that engine. If you trade it for the complete PT engine, you lose the better flowing head, and will have to drill for the IM. PT's were only made from 2001 to 2010, so you wouldn't find a 2000 model year PT. Only 2001 and 2002 PT engines will work with your PCM. If you went with a 2003 to 2010, you would need a 2004/2005 neon PCM, SKIM module, matching chipped key, and wire harness, or a complete PT PCM, wiring, etc, and sort it all out to fit in the neon.

You may need to use the neon crank pulley if you plan on using the neon alternator, etc.

I don't know how familiar you are with removing crank pulleys. If not so much, we can discuss that too.




There is the issue of repinning the PCM connector to run the 2.4 also. Since the 2.4 and 2.0 are 180º out of phase on the cranks. The cam magnet also needs the locating pins cut off and rotated 90º clockwise I believe.

This is only applicable to 2002 and older neons. 1996 to 2002 are known as SBEC engine management, and 2003 to 2005 are known as NGC. While the engines appear to be identical, the crankshafts are different, as well as the crank sensor locations. The crank and cam signals are also different, so the two are totally incompatible if one year range engine is attached to the other year range of PCM. There is no way to make one work with the other. What has been done in years past is no longer available, and that option never really got past the prototype stage as far as I know. (NGC engine with an SBEC crank reluctor ring bolted in place of the NGC wheel)

The slight advantage to using the 2.0 PCM with the 2.4 is the rev limit is 6750 vd 6000. So you will gain an extra 750 rom.

You will also need to get a 2001 to 2005 fuel pressure regulator or get at least 24 lb/hr injectors. The injectors on the 2.4 should be 21 lb/hr.

2000 FPR's are 49 psi, 2001 to 2005 are 58 psi. Occasionally, both the 24 lb/hr injectors and the 58 psi FPR are needed. On my '99 2.4 swap, I used new 21 lb/hr injectors, and the aftermarket oem replacement regulator make 63 PSI, so it worked out fairly well.

FWIW, the 2.0 injectors are 19 lb/hr.

One other thing I forgot: The 1gn intake manifold will probably need modified so the 90º upward bend is cut off, and a straight or slightly angled up tube is welded on, to either attach the 2gn throttle body, or weld a flange to bolt a bolt on throttle body directly. Otherwise trying to use a 1gn TB might stuff it directly into the hood.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

occasional demons
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by occasional demons » Wed Apr 01, 2020 8:07 pm

The person that had my '00 had a Stratus 2.4 in it, but he cut the crossmember where the lower torque strut attaches for clearance, and ran it without the strut. He welded a yoke in the center and made a set up like the 1gn bobble, the set up seemed a bit risky to me, being this car was also boosted with SRT internals, etc.

The sad thing is, the crossmember is in mint condition otherwise. A very uncommon thing for an early 2gn neon that has been in Ohio all it's life with over 100,000 miles.

The yoke could be fabbed back to use the lower strut again, but I have a spare '03 up style crossmember from my '01 that I bought new after the original rotted out. So It will likely be stored until I may need it someday.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

charlier12
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Posts: 5
Joined: Mon Mar 30, 2020 6:45 pm

Re: 2000 Neon 2.0 SOHC Engine Swap

Post by charlier12 » Thu Apr 02, 2020 2:36 pm

Thank you so much for the help and information. This is great news about the motor. I plan to just use it since I already have it and do not want to get more involved trying to make a PT motor work. Also I just confirmed with copart that the motor was actually from a 2000 Stratus and the VIN "X". So wrong year but i believe the 98' to 00' were the same motors.

For the oil filter, I will first look for another motor version with the oil filter mounted differently. If no luck, then I will make a remote filter. Shouldn't be an issue with a little ingenuity. I was really concerned that nothing else would work as well.

I was planning on changing the crank pulley but I kinda stopped moving once I seen the oil filter issue. I remember reading on either this forum or others about rotating the cam gear 90 degrees. I am glad you said something though, because I thought it only was done if you wanted more top end power and less torque.

Is the 2.0 PCM differ between a SOHC and DOHC?

I seen the injector information too, but appreciate you clarifying. I originally was following these instructions when I first started. https://forums.neons.org/viewtopic.php?t=318202

As for the 1gn, manifold I did not know this. I will try to get pictures of the progress as I did not see a lot on any of the forums.

Just another thought. For the engine mounts, should I be finding 2.0 DOHC 1gn mounts or using PT mounts? I was going to try and make the SOHC mounts work, but need some work like drilling new holes to line up with the block (especially the front mount).

I was considering cutting out the cross member motor mount bracket, but didn't want to hurt the integrity of the chassis, especially since my wife will be racing it.

Thanks again.

occasional demons
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by occasional demons » Thu Apr 02, 2020 3:25 pm

You will need PT motor mounts to use it in the 2000 to 2005 neons.

The adapters that are pictured will only work for 1gn neons.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

charlier12
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Posts: 5
Joined: Mon Mar 30, 2020 6:45 pm

Re: 2000 Neon 2.0 SOHC Engine Swap

Post by charlier12 » Thu Apr 02, 2020 9:44 pm

Got it. Thanks again for the help with this. I probably be back once I run into more problems.

charlier12
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by charlier12 » Sun Apr 05, 2020 9:33 pm

Hello Demons,

I have been searching for my parts list. This weekend, I did not get much done. Rotated the cam magnet 90 deg. clockwise, and attempted to pull the pulley off. Broke my harbor freight pulley puller. This week, my friend plans to grab one from his work to try and pull it off.

Anyways, I wanted to make sure I fully understood what I was buying before moving forward.
1. I purchased the the PT front engine Torque strut bracket part# 4668687AC. I believe I read another post on here that all the brackets and mounts are needed too. Is this true?
2. I purchased and installed MPx 2.4L Engine P/S Bracket & Engine Mount Adapter Package (Can see on previous pics). Are these still to be used? When purchased I thought i had a 1gn car.
3. Do I also need the oil pan from a PT ? What makes it fit better, if so?
4. If a PT oil pan is reguired, do I also need the pickup tube, oil pump, etc. Or is this only needed if I do not decide to do a remote filter (which I do).
5. Is the 1gn DOHC IM perform better than the stratus or is it mainly due to clearance issues? I can modify the hood if needed, as the rules do not say otherwise. I also seen that there is a lower and upper for the 1gn. I have been searching for a diagram but assume I need them both.
6. The exhaust manifold needs to be from a PT? I was trying to find her a racing header of some sort for a stratus but maybe this will not work.
7. Do I need to block off the EGR?

I was hoping to figure most of this out this weekend, however with having trouble getting the pulley off and my friend wanting to leave his shop, we didnt test anything. Next weekend we will try again.

Thanks

occasional demons
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Re: 2000 Neon 2.0 SOHC Engine Swap

Post by occasional demons » Sun Apr 05, 2020 11:11 pm

Anyways, I wanted to make sure I fully understood what I was buying before moving forward.
1. I purchased the the PT front engine Torque strut bracket part# 4668687AC. I believe I read another post on here that all the brackets and mounts are needed too. Is this true?

If you are using the PT as a donor, yes. The engine mount bracket that goes on the timing end can be either from an SRT4 or a PT, but if you are running PS, you will have to match that to whichever bracket you use.
This is the PT bracket, the SRT is similar, but the PS pump is clocked differently.

https://www.ebay.com/itm/OEM-MOPAR-RIGH ... SwNRdX-90W

If your 2.4 came with the AC mounted to it, you may not have needed to purchase that bracket. But don't hold me to that, as those may not have had a lower torque strut mounted to them like the PT/2gn neons. so possibly that is a good purchase.

2. I purchased and installed MPx 2.4L Engine P/S Bracket & Engine Mount Adapter Package (Can see on previous pics). Are these still to be used? When purchased I thought i had a 1gn car.
I am not sure if you can make use of the PS mount bracket or not. The engine mount adapter, will not work. You should be able to sell those parts eventually to someone doing a 2.4 swap in a 1gn.


3. Do I also need the oil pan from a PT ? What makes it fit better, if so?
4. If a PT oil pan is reguired, do I also need the pickup tube, oil pump, etc. Or is this only needed if I do not decide to do a remote filter (which I do).

The complete PT oiling setup is needed if you go that route. There is nothing gained as far as fit with the oil pan, just the oil pump and filter location is more suited to the neon, because those parts are also the same as the SRT4. If you make a remote oil filter set up, you can use the Stratus stuff.


5. Is the 1gn DOHC IM perform better than the stratus or is it mainly due to clearance issues? I can modify the hood if needed, as the rules do not say otherwise. I also seen that there is a lower and upper for the 1gn. I have been searching for a diagram but assume I need them both.

Yes, you need both halves. Mainly clearance between the radiator and engine. If the hood can be cut, you could use the PT IM as it goes over the engine.


6. The exhaust manifold needs to be from a PT? I was trying to find her a racing header of some sort for a stratus but maybe this will not work.
A header will work, but it will need to be a DOHC neon header.

7. Do I need to block off the EGR?
Yes

I was hoping to figure most of this out this weekend, however with having trouble getting the pulley off and my friend wanting to leave his shop, we didnt test anything. Next weekend we will try again.

Rent or buy the rental style from AutoZone. Chrysler Harmonic Balancer puller. They work like a dream.
Bill
dblsg wrote:ya'll a bunch of post whores
Seriously people, this is 2019 not 1920.
Too much time spent here is a sign of a bad case of Ownaneonvirus.

2000 Neon MTX swap with '02 R/T PCM
1999 neon coupe 2.4 swap
Help support 2GN!

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