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Are stainless headers better than ceramic?

This is a discussion on Are stainless headers better than ceramic? within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by ss~zoso~ss if u think about it, our stock manifolds are cast iron, which rusts up, but they'll ...

  1. #21
    Senior Member mrr23's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    if u think about it, our stock manifolds are cast iron, which rusts up, but they'll last for 20 years, so why wouldnt headers last that long?

    its just another way for companies to get more money out of you , for buying something you dont actually need, but that looks nice
    because headers are made out of 16 gauge steel, not 1/2" thick iron. the ceramic coating protects the steel it coats. also, as i have stated, it dramatically drops underhood temps. this turns into more hp because the intake isn't as hot.

    another benefit of ceramic coating is that it keeps the heat inside the tubes. when exhaust runs across a cold surface, it starts to transfer the heat. this slows the exhaust pulse from exiting the system.

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    Senior Member ss~zoso~ss's Avatar
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    lol, i was talking about STAINLESS

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by nhraformula View Post
    i can get my friends SS and take pictures and show you that his stainless slp headers have surface rust.
    stainless steel is not rust proof.
    SLP headers are made from 409! That is why they are rusting! If they were not cheap and made them out of 303, they would not rust

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    Quote Originally Posted by INMY01TA View Post
    I think all ceramic mild steel headers will rust. Jett Hott is the leader in ceramic coating and a couple of my friends have Jett Hott long tubes and they're both rusty as sh&t.
    They may be the leader in sales but not cause of quality! Airborne ceramic coatings are far superior!

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    Quote Originally Posted by ss~zoso~ss View Post
    if u think about it, our stock manifolds are cast iron, which rusts up, but they'll last for 20 years, so why wouldnt headers last that long?

    its just another way for companies to get more money out of you , for buying something you dont actually need, but that looks nice
    Our manifolds are made from 409 stainless

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    Senior Member ss~zoso~ss's Avatar
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    no they're not, mine are brown and rusted

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by 9t8z28 View Post
    Our manifolds are made from 409 stainless
    factory exhaust manifolds are not stainless
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

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    Quote Originally Posted by ss~zoso~ss View Post
    no they're not, mine are brown and rusted
    409 turns brownish red when they are heated
    They are 409, which rusts

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    Rice Hungry GottaHaveLS1's Avatar
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    Quote Originally Posted by 9t8z28 View Post
    409 turns brownish red when they are heated
    They are 409, which rusts
    they're cast iron dude, why do you think they're so heavy for there size and so thick?
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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by GottaHaveLS1 View Post
    they're cast iron dude, why do you think they're so heavy for there size and so thick?
    Weight has nothing to do with it.

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    OOPs! Sorry guys! I was just reading some info on LS series exhaust systems and overlooked the main engine they were talking about which was in a vette. My Bad!
    I even went to my garage and looked at mine and noticed that the material was very similar to 409. I am going to check into the content of steel used in manufacturing these manifold. Mine have 130,000 miles on them and not one bit of rust except what is tipical of 409.

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by GottaHaveLS1 View Post
    they're cast iron dude, why do you think they're so heavy for there size and so thick?
    Like I said! I was wrong, DUDE! But, again, weight has nothing to do with what kind of metal it is. Do you think they can't make stainless thick? Of course they can. Thin manifolds would be less durable no matter what the meterial used was. And this does not apply to LTH's.

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    Senior Member ss~zoso~ss's Avatar
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    our manifolds are just Fe (iron) alloyed with C (carbon)

    stainless steel is Fe alloyed with C and other alloying elements to give it the stainless property, the other alloying elements prevent the reaction between the Fe and O2 in the air, which we see as rust

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    2004 HEAD/CAM CTS-V 9t8z28's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    our manifolds are just Fe (iron) alloyed with C (carbon)

    stainless steel is Fe alloyed with C and other alloying elements to give it the stainless property, the other alloying elements prevent the reaction between the Fe and O2 in the air, which we see as rust
    I realize you are into all of that shit, which is cool as hell, but I don't understand what you just said! Please explain!

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    Rice Hungry GottaHaveLS1's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    our manifolds are just Fe (iron) alloyed with C (carbon)

    stainless steel is Fe alloyed with C and other alloying elements to give it the stainless property, the other alloying elements prevent the reaction between the Fe and O2 in the air, which we see as rust
    looks like zoso might be a chemistry major lol.

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    Quote Originally Posted by GottaHaveLS1 View Post
    looks like zoso might be a chemistry major lol.
    Yeah, I am pretty sure he is.

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    Quote Originally Posted by ss~zoso~ss View Post
    our manifolds are just Fe (iron) alloyed with C (carbon)

    stainless steel is Fe alloyed with C and other alloying elements to give it the stainless property, the other alloying elements prevent the reaction between the Fe and O2 in the air, which we see as rust
    Bill Nye The Science Guy gets kudos for knowing all the technical jargon that that makes us horsepower junkies erect with joy!!

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    Senior Member ss~zoso~ss's Avatar
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    yes it's similar to chemistry

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    Quote Originally Posted by ss~zoso~ss View Post
    Material Science & Engineering Major

    yes it's similar to chemistry
    Smart man!!! I've got a masters in criminal justice and police science so im only good 4 blowing stuff up atleast u can articulate how i blew the stuff up....We need more people like u...

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    Rice Hungry GottaHaveLS1's Avatar
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    well i'm a physics major, so with long tube headers and high flow exhaust, more air can flow out of the motor, thus it creates a greater "vacuum" that sucks in more air, creating more HP and my TA pulls yet another bus length on a fart-canned civic. lol, i'm not really a physics major...

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