C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Headers on my 94

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Old 12-10-2017, 08:16 AM
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Ruger72
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Default Headers on my 94

Hey guys, I would like to put a set of Dougs Headers on my 94. They are shorty headers that are EO Approved for emissions. They claim to be "bolt on". I am worried about clearance and plug wires fitting. Anyone have experience or input you can share? I have included a picture of the headers here. Thank you in advance.
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Old 12-10-2017, 10:39 AM
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fredk
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Just to let you know there are no performance gains from shorties. Can you not run full length headers.
Old 12-11-2017, 09:30 PM
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Klondike
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I've heard people say that there is actually better plug clearance with the shorties and they do look nice, but Zero performance gains over the stock iron manifolds.
Old 12-12-2017, 12:13 PM
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MatthewMiller
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Originally Posted by fredk
Just to let you know there are no performance gains from shorties. Can you not run full length headers.
He's in Cali, so I think he can only use EO-approved products. Does anyone know of any EO-approved long-tubes?
Old 12-12-2017, 04:09 PM
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383vett
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Originally Posted by MatthewMiller
He's in Cali, so I think he can only use EO-approved products. Does anyone know of any EO-approved long-tubes?
No such animal.
Old 12-12-2017, 07:20 PM
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MatthewMiller
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Ruger, as others have said the expense and hassle of installing shorty headers doesn't make sense if a power increase is your goal. Sounds like you don't have options for long-tubes at this time. Does California have a 25-year-old classic car exemption from emissions testing? If so, you're only a year away. Maybe wait until then?
Old 12-12-2017, 09:20 PM
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Ruger72
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Thank you guys for the information and feedback. As always I appreciate it. I believe we are at 1978 for smog not being needed here in California. So I am a ways away from that. That being said I have called and talked to Lloyd Elliot and am thinking about his cam/heads package. He says that with a tune I will be good for smog.
Old 12-12-2017, 09:57 PM
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MatthewMiller
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The good news is that you can tune this car with Tunercat, which is cheap and comprehensively capable.

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