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View Full Version : Srt-4 exhaust to '95-'99 head?



mock_glh
12-25-2006, 05:48 PM
Will an SRT-4 exhaust manifold/header bolt up to a '95-'99 DOHC head. There are a lot of options if this is possible.

Speedeuphoria
12-25-2006, 06:08 PM
it has been done look on neons.org in the engine swap area

turbovanmanČ
12-25-2006, 07:22 PM
It can be done but its not a good match, port wise. Also, you need to mod or remove one corner of the manifold for it to fit, Drivers side. I just had one in my shop, 1st Gen Neon with a SRT turbo and manifold. The port mismatch is awfull. Best bet is to buy a conversion header.

mock_glh
12-26-2006, 02:31 AM
It can be done but its not a good match, port wise. Also, you need to mod or remove one corner of the manifold for it to fit, Drivers side. I just had one in my shop, 1st Gen Neon with a SRT turbo and manifold. The port mismatch is awfull. Best bet is to buy a conversion header.

I have a Mexican manifold now but I want something with a place for an external wastegate. Could an SRT-4 manifold be ground to match the port roof (I'm guessing this is where the mismatch is)?

BadAssPerformance
12-26-2006, 02:36 AM
Or is it the older head port shape that has to be cut to match the SRT4 header?

mock_glh
12-26-2006, 03:04 AM
Or is it the older head port shape that has to be cut to match the SRT4 header?

If the header is bigger than the head it's OK to leave the head alone. The header just can't hang into the port opening.

turbovanmanČ
12-26-2006, 04:01 AM
I think the SRT is rectangle and the 99 head is oval. I don't think you can grind enough to match them up?

BadAssPerformance
12-26-2006, 10:41 AM
Yes, it is port shape that is different, but I have heard that you can cut the head enough to match.

GLHNSLHT2
12-26-2006, 11:31 AM
why not just get a newer head?

turbovanmanČ
12-26-2006, 01:27 PM
why not just get a newer head?

Non SRT heads are dime a dozen and flow almost as well.

GLHNSLHT2
12-26-2006, 01:36 PM
uhhh I find more 2k+ heads in my J-yard than the 95-99 stuff. $45 a pop.

turbovanmanČ
12-26-2006, 02:11 PM
uhhh I find more 2k+ heads in my J-yard than the 95-99 stuff. $45 a pop.


Wow, lucky guy, :nod: I see none of that stuff and if I do, they want a mint for it, :(

GLHNSLHT2
12-26-2006, 02:25 PM
if you want one simon let me know and I'll grab one and you can pick it up next time you race down here :) I think with manifolds it was like $65

turbovanmanČ
12-26-2006, 02:35 PM
Sure, I could always have some head, :eyebrows: :lol:

R/T
12-28-2006, 08:58 AM
I'll be doing the SRT manifold/turbo on a 96 Neon head, a local friend did it on his Neon, it works pretty well.

The SRT manifold port is bigger, Neon port smaller, a "good" mismatch if there is such a thing...

mock_glh
12-29-2006, 04:33 AM
I'll be doing the SRT manifold/turbo on a 96 Neon head, a local friend did it on his Neon, it works pretty well.

The SRT manifold port is bigger, Neon port smaller, a "good" mismatch if there is such a thing...

THAT is the answer I was looking for. :thumb:

mock_glh
01-23-2007, 04:01 AM
It fits! I just got one of the AGP manifolds for my Rampage. It has a port for an external wastegate and I'll be using an ATP V-flange adapter and O2 housing for an SRT-4. The extra bolt holes in the manifold don't interfere with anything (although they're pretty close to my oil drain fittings). It's a readily available alternative to the Mexican Mopar manifold. :thumb:

Russ Jerome
01-27-2007, 01:03 AM
The SRT manifold port is bigger, Neon port smaller, a "good" mismatch if there is such a thing...

The 95-99 head has plenty of room to grow ;)
http://hometown.aol.com/russjerome/images/lonewolfexrunner.jpg
Mildly ported above and Lonewolf ported below.
Im finishing my header this week, looking pretty :evil:

turboshad
01-29-2007, 11:41 AM
There is definately alot of room to grow in the side walls of the ports. Here are a couple cut aways.

http://i54.photobucket.com/albums/g103/turboshad/DOHC%2016V%20Head/DSC01066.jpg

http://i54.photobucket.com/albums/g103/turboshad/DOHC%2016V%20Head/DSC01071.jpg

If you haven't seen it already there are many more at http://www.turbo-mopar.com/forums/showthread.php?t=9519

DJ