2.4L SOHC Conversion Kit

This is the place to ask questions about your engine components like cams, valves, pistons… just anything that is generally "engine" specific. This also includes questions about exhaust systems such as exhaust manifolds, piping size, mufflers, ect...
occasional demons
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Post by occasional demons » Tue Nov 22, 2011 10:27 pm

Public Disturbance wrote:Well shucks guess a guy would just have to run a box manifold for this
Or the bottom plenum of the Mag IM modded a bit to clear.
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Post by JeffB#2 » Tue Nov 22, 2011 10:29 pm

It's really tight. A little grinding might not be enough.

Or, fly cut the flange at a ~1 degree angle. Not too much so that the radiator fan(s) become a major interference.
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Public Disturbance
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Post by Public Disturbance » Wed Nov 23, 2011 3:19 pm

occasional demons wrote:
Public Disturbance wrote:Well shucks guess a guy would just have to run a box manifold for this
Or the bottom plenum of the Mag IM modded a bit to clear.
Box Mani sounds like fun tho

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Public Disturbance
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Post by Public Disturbance » Fri Nov 25, 2011 3:34 am

Ok so here is a list of everything a guy would need if I missed something let me kgo ahead and add it

Pre 01 2.4 block or 02+ 2.4 block with oil passage welded
Mazda T117 timing belt
AEM 2.0 Tru Time 3 bolt Cam Gear
JeffB spacer
SRT4 Engine Mounting Bracket
SRT4 tensioner
SRT4 water pump
210mm SOHC Head bolts or studs cut to 195mm

Things I'm not 100% sure on is

Will the 2.0 sohc timing cover fit



Like I said is I'm missing anything go ahead and say something
Last edited by Public Disturbance on Sat Nov 26, 2011 2:53 pm, edited 1 time in total.

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Post by neonrt_98 » Fri Nov 25, 2011 3:54 am

The JeffB#2 Spacer iS not needed when putting a SOHC head on a 2.4L short block.
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Post by Danteneon » Fri Nov 25, 2011 8:20 am

Public Disturbance wrote:Things I'm not 100% sure on is

Will the 2.0 sohc timing cover fit
What the correct length head bolts/studs are


Like I said is I'm missing anything go ahead and say something
http://forums.neons.org/viewtopic.php?f ... hilit=SOHC

That is the thread that answers all of your questions (minus the one about the timing covers).
If I could just figure out how to meld the Outback and the Neon into one car...

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Public Disturbance
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Post by Public Disturbance » Sat Nov 26, 2011 2:52 pm

Danteneon wrote:
Public Disturbance wrote:Things I'm not 100% sure on is

Will the 2.0 sohc timing cover fit
What the correct length head bolts/studs are


Like I said is I'm missing anything go ahead and say something
http://forums.neons.org/viewtopic.php?f ... hilit=SOHC

That is the thread that answers all of your questions (minus the one about the timing covers).
Ok thanks i did read that already must have over looked the head bolt length.

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Post by JeffB#2 » Sun Nov 27, 2011 8:43 pm

Should be set to "public" so anyone can see these. Reference the neons.org thread for other minor misc info.


http://www.facebook.com/video/video.php ... 0863776000



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BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
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Post by a23dranger » Sun Nov 27, 2011 10:25 pm

jeff i like your signature lol. yes 2.4 sohc
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Post by Public Disturbance » Sun Nov 27, 2011 10:37 pm

Jeff you sir are a god among neon people! Now hop on the dyno and see how it does vs a equivalent 2.0 sohc

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Post by JeffB#2 » Mon Nov 28, 2011 6:39 pm

a23dranger wrote:jeff i like your signature lol. yes 2.4 sohc
I had to do it. lol
I probably don't need a Magnum cam now, sorry I didn't get back to you sooner. I was trying NOT to pull the complete R/T head off my spare 2.0 but I gave in and moved it over.




No dyno. Closest one is an hour and $75. Maybe in the spring when the locals do a group deal for $50.
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
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Post by INVUJerry » Tue Nov 29, 2011 10:07 pm

Well Jeff, everyone wants to know. Is it fast?
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So many neons so little time.

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Post by JeffB#2 » Tue Nov 29, 2011 10:31 pm

Runs great. "Feels" better than the stock Stratus 2.4 that was in it before. Maybe this weeken I will see if I can find my Gtech that I stashed away over 5 years ago.
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
www.boogerbushings.com

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Post by ZeroChad » Wed Nov 30, 2011 12:31 am

What are you running for a cam? I'm guessing the 2.4 will want at least a 14?
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Post by JeffB#2 » Wed Nov 30, 2011 6:18 am

14 because I had one. If money were free, I'd go with the 007 for the little extra duration.
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
www.boogerbushings.com

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Post by Public Disturbance » Fri Dec 02, 2011 7:31 pm

JeffB#2 wrote:14 because I had one. If money were free, I'd go with the 007 for the little extra duration.
Isnt the 007 now the crane 20

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Post by JeffB#2 » Fri Dec 02, 2011 8:07 pm

Whatever it's called now. The one with .355/345 lift with more duration than the "14".
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
www.boogerbushings.com

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Post by occasional demons » Fri Dec 02, 2011 8:10 pm

Expensive? :lol:
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Post by JeffB#2 » Fri Dec 02, 2011 8:11 pm

Aren't the SOHC cams around $350 now new from Crane? More than I want to pay for anything right now.
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
www.boogerbushings.com

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Post by occasional demons » Fri Dec 02, 2011 8:13 pm

Amen.
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Post by neonrt_98 » Fri Dec 02, 2011 8:23 pm

Crane 16 = old Crane #4
Crane 18 = old Crane #5
Crane 20 = old Crane #8
Crane #7 has the lift of a Crane 14 & Crane #4/16 but the duration of the Crane #5/18

I updated the cam chart with the other Crane cams
viewtopic.php?p=910231#910231
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Post by chipdogg » Mon Dec 05, 2011 9:32 pm

JeffB#2 wrote:No dyno. Closest one is an hour and $75. Maybe in the spring when the locals do a group deal for $50.
Let me know when you guys go, I'll have something better in my Magenta. Either a built 2.4 with my Eddie Fierro head and stage 4's, or the new 2.4 short block with my Nate Greer magnum head and #14.

Bummer about mag intake, I was looking at using that if I try the 2.4 SOHC. Nate put an extra "idler" pulley at bottom of block and used stock SOHC timing belt, SRT tensioner on the engine I picked up from Michigan. Didn't take pics before I tore it apart though.

And the DCR kit is a joke.
COME TO MY NEXT NEON MEET!!!

April 6th, 2013

viewtopic.php?t=64866

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head bolts

Post by gearbanger4 » Tue Jun 19, 2012 5:02 pm

JeffB#2 , thanks for all the valuable info. Just curious how much did you chop off the headbolts to mate the sohc head to 2.4 block? Or did you use different bolts....?

And, maybe you could use a manifold spacer between the mag head and mag manfold flange to push the manifold out slightly?? That is if somebody makes one?? (to clear the starter solenoid).
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Post by JeffB#2 » Tue Jun 19, 2012 5:06 pm

I don't remember the bolt length but it's in the big org post, use the long stock SOHC bolts.
If you space out the manifold you'll have even worse problems with the manifold and radiator fan(s) running into each other.
BoogerMan
'95 Ply NYG ACR sedan 12.31 @ 111 all motor 2.4 swap - puked
'95 Ply NYG Sport Coupe 2.4 SOHC. Yes, 2.4 single cam.
'01 ACR Stone White
www.boogerbushings.com

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Re: head bolts

Post by Danteneon » Wed Jun 20, 2012 8:57 am

gearbanger4 wrote:JeffB#2 , thanks for all the valuable info. Just curious how much did you chop off the headbolts to mate the sohc head to 2.4 block? Or did you use different bolts....?
JeffB#2 wrote:2.0 SOHC:

6503561 4 BOLT, Cylinder Head (M11x1.50x164.00)
6503562 6 BOLT, Cylinder Head (M11x1.50x210.00)



2.0 DOHC:

6503559 4 BOLT, Cylinder Head (M11x1.50x110.00)
6503560 6 BOLT, Cylinder Head (M11x1.50x156.00)



2.4 DOHC:

6504033 10 BOLT, Cylinder Head (M11x1.50x146.00)



2.4 SOHC

6503562 - you need 10, cut them to length on your own, 195mm. Check EACH ONE to make sure it doesn't bottom out in the hole.
If I could just figure out how to meld the Outback and the Neon into one car...

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jonnymopar
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Post by jonnymopar » Wed Jun 20, 2012 12:24 pm

Ok, so I'm kinda confused at the picture of the engine above. Hopefully I didn't miss something here. Is that a Neon DOHC intake bolted to the SOHC? I thought the port shape and bolt pattern were different SOHC vs. DOHC??
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Danteneon
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Post by Danteneon » Wed Jun 20, 2012 12:26 pm

IIRC, it is a 95 aluminum SOHC intake.
If I could just figure out how to meld the Outback and the Neon into one car...

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Post by r/tguy02 » Wed Jun 20, 2012 1:29 pm

runners look too square to be a sohc to me, mine is more rounded than that anyway. :?
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Post by occasional demons » Wed Jun 20, 2012 2:08 pm

Unless the t'stat housing was cut off, and the ports matched, it is a '95 SOHC IM. Plus there are no struts on the back from the flange to the plenum. :)

Edit:

Image

They are pretty damn close in appearance tho, and his pic is sort of dark, so it is hard to tell until he chimes in...
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Post by Danteneon » Wed Jun 20, 2012 2:34 pm

Image

Best pic I could find quickly. They are pretty rare after all :lol:

The reason for that manifold is so it clears the starter solenoid whereas the Magnum won't.

*Dumass edit*

Crap, that looks like a 2.0 DOHC engine, but the t/stat housing is separate. Now I'm really confused :-k
If I could just figure out how to meld the Outback and the Neon into one car...

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