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Headers in Colorado

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by sjeccles, Aug 24, 2001.

  1. sjeccles

    sjeccles Registered Member

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    Are headers legal in colorado? I"m buliding a small block for a friend that lives in Colorado springs for his 86 K5. I know that they wont cause more emmisions but will they pass visual inspection??

    Thanks

    90 K5 jimmy
     
  2. prjt_blzr

    prjt_blzr 1/2 ton status

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    If the factory manifolds ran AIR tubes then your new headers will need to as well. Also, you must run one cat if the vehicle uses unleaded. You might get Loni at the emmissions center (they are in the phone book) to cut you some slack on the cat if you run two but you'll need to contact him and take the vehicle in.
     
  3. prjt_blzr

    prjt_blzr 1/2 ton status

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    If the factory manifolds ran AIR tubes then your new headers will need to as well. Also, you must run one cat if the vehicle uses unleaded. You might get Loni at the emmissions center (they are in the phone book) to cut you some slack on the cat if you run two but you'll need to contact him and take the vehicle in.
     
  4. OneLeft

    OneLeft 1/2 ton status

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    The safest bet is to go with a set of headers that comes with a C.A.R.B. number. They will pass all the inspections and have a decal that you put someplace under the hood where is lists the exemption number. Most header manufacturers will specify if their headers are set up for emissions controlled vehicles.

    One word of advice, I had nothing but trouble with the Edelbrock headers, they crack at the collector and at the welds. They use very thin gauge steel. The best ones I have found are the Thorley Tri-Y headers.
     

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