1961 THRU 1965 2 X 4 AIR CLEAR BASE (FOR OPEN ELEMENT) Posted on May 18, 2022May 19, 2022 by drj $295.00 PLUS SHIPPING BUILD YOUR OWN CUSTOM 2X4 AIR CLEANER! I think this a 1962 base that can be used with the 881 intake & AFB 3361 / 62 carbs. You can buy the lid from show cars. Really a nice look to your engine.