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Headers

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by KILLERK5, Sep 20, 2001.

  1. KILLERK5

    KILLERK5 1/2 ton status

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    Somebody told me that if I put headers on a stock engine, I will lose horsepower. He isn't the first person I would trust, but I thought I'd ask anyway. Or would it just be better to get a bigger exhaust manifold?

    Thanks!!!!!
     
  2. Blazer_Boy

    Blazer_Boy 1/2 ton status

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    Does he have a door on his microwave? haha j/k. No, it will add hp because the engine can "exhale" easier. Its like trying to exhale through a straw or through a piece of 2" pipe, which one is easier?

    <a target="_blank" href=http://www.geocities.com/bigkern76>http://www.geocities.com/bigkern76</a>
     
  3. xnoahx

    xnoahx 1/2 ton status

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    Im pretty sure he is wrong. Stock manifolds ar designed to be durable and quiet. Headers are designed to improve exhaust flow which better evacuates the cylinder of burnt gasses.

    Check out my 73 K5 <a target="_blank" href=http://www.geocities.com/xk5blazerx/73k5.htm>http://www.geocities.com/xk5blazerx/73k5.htm</a>
     
  4. shaggyk5

    shaggyk5 1/2 ton status

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    mmmmmmmmmmm, headers are yummy......... mmmmmmm

    --matt
    <font color=blue>86, 350 crate, 33's.</font color=blue>
    <font color=red>Lop Sop Doi Off-Roader</font color=red>
     
  5. TorkDSR

    TorkDSR 1/2 ton status

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    your exhaust is only as good as your weekest link. if your cats or muffs are more restrictive than the stock exhaust manifold then the headers won't do much. except melt your speedo cable... Ignition wires... cb antenna wire.... winch controller... fingers, countless fingers....

    Tork DSR
    I just got a winch, it takes the fun out of things.
    http://www.torkpig.homestead.com
     
  6. shaggyk5

    shaggyk5 1/2 ton status

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    dont forget, randomly igniting loose tranny fluid! FLAMES FIRE!!!!

    --matt
    <font color=blue>86, 350 crate, 33's.</font color=blue>
    <font color=red>Lop Sop Doi Off-Roader</font color=red>
     
  7. TorkDSR

    TorkDSR 1/2 ton status

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    tranny fluid fires, 10-30 fires, air cleaner fires, i think that headers caused california area forest fires


    Tork DSR
    I just got a winch, it takes the fun out of things.
    http://www.torkpig.homestead.com<P ID="edit"><FONT class="small">Edited by TorkDSR on 09/20/01 10:21 PM.</FONT></P>
     
  8. TorkDSR

    TorkDSR 1/2 ton status

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    passerby: "fire, fire its on fire"
    me: "it happens all the time, a little smoke"
    passserby: "fire fire"
    me: "smoke fire or flames fire?"
    passerby: "flames fire! Flames Fire!"
    me: "sh!t"
    (after fire extinguished)
    passerby: "that happen often"
    me: "do seaguls at the shore sh!t white?? that's my third fire extinguisher.. i just got the truck."



    Tork DSR
    I just got a winch, it takes the fun out of things.
    http://www.torkpig.homestead.com
     
  9. BlazinRojo

    BlazinRojo 1/2 ton status

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    Yeah, I wouldn't trust that guy as far as I could throw him. I think the only way headers would be worse (other than fires and gasket probs) is if they were so incredibly huge, and your stock manifolds were excellent, that the huge size actually reduced the scavenging effect (exhaust gases pulling other balls of gas through the exhaust to keep things moving), but that would never happen. Use Headers!

    Shutup Brain or I'll stab you with a Q-Tip - Homer J. Simpson
     
  10. shaggyk5

    shaggyk5 1/2 ton status

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    THAT, ladies and gentlemen, is a true story.

    But really now, headers are good. they allow your exhaust to flow much better, but they should be matched to a better exhaust in order to see full potential. And yes, they do raise temps underhood just a little.

    --matt
    <font color=blue>86, 350 crate, 33's.</font color=blue>
    <font color=red>Lop Sop Doi Off-Roader</font color=red>
     
  11. ChevyCaGal

    ChevyCaGal 3/4 ton status

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    I got headers... I like headers... they sound good, look good, run good... as Martha Stewart would put it... it's a good thing! [​IMG] [​IMG]

    GOD BLESS AMERICA!!!
    &lt;&gt;&lt; MARK 1:17 &gt;&lt;&gt;
     
  12. Thunder

    Thunder 3/4 ton status

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    Headers and exahust is the first modification I do to all my vehicles that i have ever built. And I have built quite a few.
    I have never lost any power because I put headers on. A set of headers and free flowing exhaust has always improved the performance of any vehicle I have put them on.
    You just need to put on the right kind of header for your needs.
    Big tube headers are good for top end power at higher RPMs(not so good for trucks)
    Small tube headers are good for building power at low RPM (good for trucks)

    <a target="_blank" href=http://coloradok5.com/gallery/Thunders-Blaze>http://coloradok5.com/gallery/Thunders-Blaze</a>
    <font color=blue>NEVADA: Where the pavement ends, and the West begins.</font color=blue>
     

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