Grommet (PCV Intake Grommet)
This is the Grommet that fits into your Intake Manifold for the PCV Hose Assembly
Fits 1970 -1972 350 & 455 Engines. (Maybe More)
Source – TPP
Note: This grommet is a once installed in the intake manifold is a very tight fit.
Use caution installing the PCV Valve so you don’t push the grommet into the engine area!