tti headers for 383

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    Author Topic: tti headers for 383  (Read 2642 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.
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    - 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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    Mike

    1970 Challenger - SOLD
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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:
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    Offline widing'cuda

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    Re: tti headers for 383
    « Reply #3 on: September 26, 2007 - 06:46:03 PM »
    Quote from: MEK-Dangerfield 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. 

    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
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    - 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 »
    Quote from: widing'cuda on September 26, 2007 - 06:46:03 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
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    Mike

    1970 Challenger - SOLD
    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 »
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    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?
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    - 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.
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    1971 Challenger (OO==== ====OO) getting close!
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    *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.
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    - 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 »
    Quote from: Chryco Psycho on September 29, 2007 - 03:27:14 AM
    Hedman fit like crap especially with the mini starter

    I know that's why I'm going to switch to tti
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    - Jørgen - Norwegian Mopar fanatic

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