Guest tjet Posted December 23, 2011 Share Posted December 23, 2011 I was going through a box of Olds parts when I found an unusual valve cover breather. It has "AC FB55" on it. It was originally black metal, without any air cleaner hose.Any ideas on what year and model Olds it was for? Link to comment Share on other sites More sharing options...
Guest Jim_Edwards Posted December 24, 2011 Share Posted December 24, 2011 Any old fashioned parts house can probably look it up for you as the AC application catalog covers several decades. If it's a push on it's early 60's or before. Twist in Mid '60s to early '70s. Suspect the application may well include many GM products of the time, not just Olds.Note: According to Fusick's catalog it is for '65-'67 engines without closed PCV system. Link to comment Share on other sites More sharing options...
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