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Muffler dimensions ? *URGENT*

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by SlyDog, Nov 30, 2001.

  1. SlyDog

    SlyDog 1/2 ton status

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    Hey, I am probaly gonna order me some flowmasters today since summitracing is having a 10% discount today <img src="http://coloradok5.com/forums/images/icons/cool.gif"> What I need to know is how long should the inlet and outlet pipes be on the muffler ? The engine is totally stock and I will eventually be putting headers on also. thanks ! BTW this will be a 40 series 2 chamber if that helps <img src="http://coloradok5.com/forums/images/icons/smile.gif">

    <font color=green>&lt;img src="http://coloradok5.com/forums/images/icons/cool.gif"&gt;1977 K5 GETTIN IT AWN&lt;img src="http://coloradok5.com/forums/images/icons/cool.gif"&gt;</font color=green>
    BUILT NOT BOUGHT<P ID="edit"><FONT class="small">Edited by SlyDog on 11/30/01 02:16 PM.</FONT></P>
     
  2. SlyDog

    SlyDog 1/2 ton status

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    Re: Muffler dimensions ?

    I need this pretty quick ! 2 1/4 or 2 1/2 ?

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     
  3. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Paulie;

    I just measured my Flowmaster 40 series muffler. It's offset inlet and offset outlet 2 1/2" diameter. When you're asking for the length of the inlet and outlet pipes I'm a little confused. Summit is listing the pipe diameters that fit each particular muffler. 2 1/4" is for a 2 1/4" pipe system. 2 1/2" is for a 2 1/2" system.

    If it makes any difference to you my 2 1/2" in and out flow has inlet and outlet stubs 3" long.

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  4. Executioner

    Executioner 1/2 ton status

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    Re: Muffler dimensions ?

    Go with the larger, you can always reduce them if nesecary.
    IHMO
     
  5. SlyDog

    SlyDog 1/2 ton status

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    Re: Muffler dimensions ?

    Yea, rene , i was confused with the length and diameter [​IMG] Ok, gonna go order them now ! Thanks guys ! ! [​IMG][​IMG]

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     
  6. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: Muffler dimensions ?

    Yeah...go with the 2 1/2" Flows.[​IMG]

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     
  7. SlyDog

    SlyDog 1/2 ton status

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    Re: Muffler dimensions ?

    O YA ! ! Ordered me some 2 1/2" flows ! ! ! Gonna be here on monday [​IMG]

    <font color=green>[​IMG]1977 K5 GETTIN IT AWN[​IMG]</font color=green>
    BUILT NOT BOUGHT
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: Muffler dimensions ?

    cool...you'll like em!

    Rene

    <font color=green>Dyslexics of the world...UNTIE!</font color=green>
    <a target="_blank" href=http://coloradok5.com/gallery/project_T2> tRusty pics...</a>
     

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