tti headers for 383

Author Topic: tti headers for 383  (Read 2631 times)

Offline widing'cuda

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tti headers for 383
« on: September 26, 2007 - 06:01:29 PM »
I'm thinking of getting tti headers for my 'cuda with a 383. Engine has something like 350-400 hp.
Should I get the 1-3/4" or 1-7/8" headers? I'm going to run 2-1/2" x-pipe exhaust system.

- Jørgen - Norwegian Mopar fanatic

1970 Plymouth 'Cuda 383 A833 8-3/4 3.23 suregrip
http://cuda.widing.biz/




Offline MEK-Dangerfield

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Re: tti headers for 383
« Reply #1 on: September 26, 2007 - 06:30:03 PM »
I'll vote 1-3/4". Life will be easier with installation, and you aren't running a big horsepower engine, so that's my vote.   :thumbsup:


  Mike

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moparniac

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Re: tti headers for 383
« Reply #2 on: September 26, 2007 - 06:32:39 PM »
I just got my 2"................... wow... they rule... 2" ceramic coated with thermal barrier and polished....... :droolingbounce:

Offline widing'cuda

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Re: tti headers for 383
« Reply #3 on: September 26, 2007 - 06:46:03 PM »
I'll vote 1-3/4". Life will be easier with installation, and you aren't running a big horsepower engine, so that's my vote. 

That's true. Installing them will be easier. But if I upgrade to 500 hp will I need the 1-7/8" then?
I have stock 906 heads

- Jørgen - Norwegian Mopar fanatic

1970 Plymouth 'Cuda 383 A833 8-3/4 3.23 suregrip
http://cuda.widing.biz/

Offline MEK-Dangerfield

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Re: tti headers for 383
« Reply #4 on: September 26, 2007 - 06:57:15 PM »
That's true. Installing them will be easier. But if I upgrade to 500 hp will I need the 1-7/8" then?
I have stock 906 heads

I want to say "yes". The next question is, can you get 500HP out of stock 906 heads. I think maybe not.  :dunno:


  Mike

Mike

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2016 SXT+.  1 of 524 SXT+'s in Plumb-crazy for 2016.

moparniac

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Re: tti headers for 383
« Reply #5 on: September 26, 2007 - 07:33:26 PM »
Example: A stock "906" head flows 126 cfm at 0.500" lift. The potential HP is 126 * 3.44 = 433 HP
« Last Edit: September 26, 2007 - 07:35:15 PM by moparniac »

Offline bb71challenger

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Re: tti headers for 383
« Reply #6 on: September 26, 2007 - 07:48:50 PM »
I would get the 1 7/8 headers. They will do just fine on a stock engine and if you ever upgrade the mill you can still use them with great results.
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Offline widing'cuda

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Re: tti headers for 383
« Reply #7 on: September 27, 2007 - 05:44:08 PM »
So 1 7/8" will not be to large for the stock heads?

- Jørgen - Norwegian Mopar fanatic

1970 Plymouth 'Cuda 383 A833 8-3/4 3.23 suregrip
http://cuda.widing.biz/

Offline bb71challenger

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Re: tti headers for 383
« Reply #8 on: September 27, 2007 - 07:18:48 PM »
As far as I have every heard the gain over exhaust manifolds is so great that you would not really notice the difference between 1 3/4 and 1 7/8.
1971 Challenger (OO==== ====OO) getting close!
1970 Challenger (OO########OO) long ways off
*Brett*

Offline Chryco Psycho

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Re: tti headers for 383
« Reply #9 on: September 28, 2007 - 02:31:41 AM »
Talk to TTi & see what they recommend , I tend ot agree , either will be a gain , if you paln to do more with the engine I would look at the bigger tubes otherwise the 1 3/4 will give better low & mid range power generally

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Offline widing'cuda

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Re: tti headers for 383
« Reply #10 on: September 28, 2007 - 11:12:33 AM »
I have headers from Hedman now. But they are hitting the mini starter and are to many dents and bends in them. And they heat up the engine compartment a lot. So I was thinking of headers that are ceramic coated w/ thermal barrier. I'l ask tti and see what they recommend.

- Jørgen - Norwegian Mopar fanatic

1970 Plymouth 'Cuda 383 A833 8-3/4 3.23 suregrip
http://cuda.widing.biz/

Offline Chryco Psycho

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Re: tti headers for 383
« Reply #11 on: September 29, 2007 - 03:27:14 AM »
Hedman fit like crap especially with the mini starter

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Offline widing'cuda

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Re: tti headers for 383
« Reply #12 on: September 29, 2007 - 08:30:14 AM »
Hedman fit like crap especially with the mini starter

I know that's why I'm going to switch to tti

- Jørgen - Norwegian Mopar fanatic

1970 Plymouth 'Cuda 383 A833 8-3/4 3.23 suregrip
http://cuda.widing.biz/