Does a G20 Chevy conversion van have catalyst converter?

G20 Chevy vans, depending on the year of manufacture, may or may not have a catalytic converter. Federal emissions regulations regarding catalytic converters were phased in over time. Therefore, a G20 from the early 1970s would almost certainly *not* have one, while a later-model G20 (late 1980s and beyond) would almost certainly *have* one or more.

To know for certain if a specific G20 Chevy van has a catalytic converter, you'd need to:

* Check the vehicle's emissions sticker/label: This might be located under the hood or in the glove compartment and will list emission-related equipment.

* Visually inspect the exhaust system: Catalytic converters are usually cylindrical metal components somewhere in the exhaust system, often close to the engine. However, their location can vary.

* Consult a repair manual specific to the van's year and engine: These manuals will show a diagram of the exhaust system, indicating the presence or absence of a catalytic converter.

* Check the vehicle identification number (VIN): This can be used to look up the original specifications of the van, which might include information about the emissions system.

Without knowing the specific year of the G20 van, it's impossible to definitively answer the question.