Need help passing emissons
General rule of the law states you have to use all of the OEM for the year of the donner engine and PCM (and VIN) to match the engines year. (yes there is ways around this), same or new year engine only for the swap. You would need to use all of the Smog equipement from the Cats, EGR, AIR, Sensors, 02 sensors, etc). Your car/truck basically become and is tested as the newer car/truck that the engine came from.
Suggest you go to your states DMV web site and look for there links on Engine Swap/Conversion.
Also they look for check engine lights and scan the comp for codes.
The older ones back 96 sniffer test and you going to have to run cats. I’m in Forsyth as well I know some country have not emissions laws like Dawsonville. Its based of the population in the country






