Motor and tranny question.

Working on a DOHC or 2.4L swap, or maybe you have some other idea and have some questions? Feel free to ask them here...
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98yoda
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Motor and tranny question.

Post by 98yoda » Tue May 12, 2009 12:14 am

Currently im running a SOHC ATX, but i am switching to a DOHC MTX. i should probably just buy a whole new engine but i just rebuilt this one under 1k miles ago. But my questions are, would it be easier to modify the harness, or to buy a new one? And what really needs to be changed on the head? I dont want to know what doesnt have to be changed, just confuses me lol.
98 Neon Coupe - SOLD
98 Neon Coupe - 2.4 DOHC MTX :rockon:
2004 Neon SXT - ATX
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98yoda
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Post by 98yoda » Tue May 12, 2009 9:22 am

Also wondering and guessing, DOHC and SOHC fuel rail different?
98 Neon Coupe - SOLD
98 Neon Coupe - 2.4 DOHC MTX :rockon:
2004 Neon SXT - ATX
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Mopar00neon
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Post by Mopar00neon » Sun May 17, 2009 5:10 pm

Its easier to buy a DOHC harness. Theres several little differences in connectors, and wire length.

Yes, DOHC fuel rails are different, as well as the hard heater lines under the intake manifold.

Theres a lot of things that need to be changed, though none are difficult or hard to come by. What exactally are you wondering about the head?
-brian

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DOHCRT
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Post by DOHCRT » Sun May 17, 2009 5:39 pm

Its very simple to use the SOHC harness on a DOHC. Lengthen the coolant temp sensor wires and change the TPS connector. Almost all sensors are interchangeable between SOHC and DOHC engines. DOHC's have a different camshaft sensor, TPS, and possibly IAC. Ive run into a few different TPS pigtails, so just be sure to get one that fits whatever DOHC TPS you find.

I have done this before, and it was easy.
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98yoda
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Post by 98yoda » Mon May 18, 2009 9:36 pm

K are both ends of the sensor different? And i meant what parts of the heads need to be changed like intake mani and exhaust. Also whats different between the auto and manual tranny harnesses.
98 Neon Coupe - SOLD
98 Neon Coupe - 2.4 DOHC MTX :rockon:
2004 Neon SXT - ATX
:mopar:

carboneon
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Post by carboneon » Sat Jan 16, 2010 6:15 pm

dont forget ur gunna have to change the k frame out to use the bobble strut because automatics dont come with the mounting tabs

fattirebicycles
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Post by fattirebicycles » Sat Jan 16, 2010 6:40 pm

I make a bracket for $35 shipped that slips over the auto k-member to give you a mounting point for the bobble strut.

You need to change the head, timing covers, timing belt, passenger engine mount, hard heater tubes, intake and exhaust manifolds.
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98yoda
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Post by 98yoda » Mon Jan 18, 2010 2:00 pm

This was last year people, and I just got a shell and a tranny. Works for me, got it free. :lol:
98 Neon Coupe - SOLD
98 Neon Coupe - 2.4 DOHC MTX :rockon:
2004 Neon SXT - ATX
:mopar:

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