1965, at least according to this Web page: http://www.nicksgarage.com/aircleaner.htm But I don't remember '65s having that 2x snorkel style. For example, the 1965 300 used an unsilenced air cleaner similar to the 1965 273 Formula S air cleaner. That nicksgarage page does have a photo labeled 1966: http://www.nicksgarage.com/aircleaner/66_440_tnt_01.jpg For 1967 & up see: http://moparmuscle.automotive.com/118909/mopp-0212-air-cleaner-spotters-guide/index.html Thanks, Gary H. -----Original Message----- >Hi, > >This is a question about the air cleaner I want to use on my wife's 64 >Polara 500 ragtop. > >When did the twin snorkel air cleaner first get used? 68? The one that >I bought has the grooves around the perimeter of the air cleaner and a >hose hipple to connect to the Oil breather cap. > >I bought one that fits the Thermoquad and looks just amazing on the >intake/carb and I am just curious about it. > >Thanks, > >K. > > >Kevin R. Merkley ---- Please address private mail -- mail of interest to only one person -- directly to that person. I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.