[dmjlambert]

Yes that is what I found also. I went and visited with an old timer at the parts counter at the Chevy dealer in Plano TX. He ordered the breather grommet GM# 14091870 for me, and said the PCV uses the same grommet, or if I wanted to use the slanted PCV grommet from later year models it is GM# 3989350. He also sold me the later model years PCV valve with the right angle hose connection. I like that setup best with the slanted grommet and right angle PCV valve. I can use a plain hose and don't need the one that is molded to bend, and the hose doesn't stick up, it just lays flat. There are Dorman equivalents and Dorman grommet seems to me to be softer rubber and easier to install. I replaced the breather grommet with a Dorman after I wore out the GM one by taking the air cleaner spacer off a couple of times too many. This is for 1969 SBC 350 engine.

Breather/flame arrester grommet GM# 14091870 Dorman 42052
PCV valve slanted grommet GM# 3989350 Dorman 42062
PCV valve (right angle elbow type) GM# 6487779