Question about 1983 Chevrolet Silverado

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What does my 77 gmc K20 need to pass CA smog

I have a 77 GMC K20 that has a 454, I just bought it and it has no smog equipment, do i need a smog pump, egr, charcoal canister, etc? wht exactly do i need to get it to pass smog

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  • Jerry Koski
    Jerry Koski May 11, 2010

    all states differ .. some will make you replace all cats included .. smog pump and all .. Depends on the state.

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As far as I know. Anything 1994 and under don't have to go through emissions anymore, just safety. But, like countrysi248 said, it might depend on what state you live in. Best wishes to ya.

Posted on Jan 26, 2009

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I have a 1977 chevy c10 truck with a small block 400. I just moved to Phoenix Arizona and it has no smog. Will I need to add anything to it to pass emissions?

Posted on Sep 18, 2009

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