Hi All
Moving some stuff around I came across a couple carburetors I'll never use. The numbers on this one key out as a 1978 403. 17058253 date code 2977 and BTY. I don't know anything about it so consider it a rebuildable core. The threads on the fuel inlet are good. Price is $50 plus shipping from Medford Oregon. Attached are a number of photos. Let me know if you want to see anything not clear in these. John