First mandatory year for a PCV valve is '63, I believe. My '60 did not have it and I was scared sh, well scared when I say faint smoke emerging from the hood. That car had Negative Crankcase Ventalation. In '63 PCV valves were on all new cars sold in the US, again to MY understanding. 1965 California set standards for emissions for cars sold in that state. My '66 was equipped with "California Emissions Standards", or some such language. CA set the stage for all to come over the next several years. They still do. Without CA insisting at a certain percentage of cars sold in CA were electric or hybrid cars by 2003 we go the Prius, and Honda hybrids. Ford is using the Toyota setup to meet their requirements. Wm. R. Ulman Seattle, WA twolaneblacktop@xxxxxxxxxxx -----Original Message----- From: mailing-list-owner@xxxxxxxxxxxxxxxx [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On Behalf of DR CHALLENGER Sent: Wednesday, May 11, 2005 9:52 AM To: mailing-list@xxxxxxxxxxxxxxxx Subject: Re: IML: 63 carb PCV hose. the first year I find a listing for a PCV value is 1966 ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm