It goes back way before 55, but here it is in the 55 shop manual. It was an RPO for Closed Positive Crankcase Ventilation.Cecil, I have seen it on a '61 Corvette a friend restored. I have only seen one '62 Impala in a scrap yard with it so I grabbed it. I read in my '62 assembly manual that it was offered as an option. Leo
What about this type of breathers this is the kind I was told to use?
@Carmine I know this is an ancient post, but what were the results of your installation and do you have pics? Curious.