I have a 1970 Cutlass Supreme Convertible. It came with a 350 2bbl. The old emissions label I found has the letters "SO" in the bottom right hand corner inside a circle. I'm trying to get a replacement emissions label but can't seem to match this code to anything. Does anyone know what the significance of "SO" is for?

 

SO is the code for your engine, 350 2bbl, auto trans. Fusicks has the label.

 

Sorry but I don't find any engine code "SO".

 

It is listed in my Fusicks catalog.

 

Tried to do a copy and paste from the online catalog, no luck. Page 113, part number DC61D.

 

Mark Cornea AKA DR decal

Pat