[60sStuff]

The Positive Crankcase Ventilation System.

The “California type PCV closed system” option K24/614 was mandatory for the first 3 years (64,65,66) of the GTO if sold “NEW” in the state of California and applied to both Automatic and Manual Shift cars.

The other 49 states did not require this #614 option on a New Pontiac, therefore making this a rather rare feature to find on a 4BBL. or Tri-Power.

In ‘64 the RH valve cover had a 2-3/4’’ high round stack to accommodate two different push on oil fill caps.
The “Sealed” AC-OIL FC-45 cap for the #614 option looked like a top hat.

The LH valve cover was flat with a rubber grommet to accommodate a black painted steel pipe which lead to the air cleaners.

The last photo shows a ‘64 GTO I owned about 40 years ago that the Original owner I bought it from changed the engine color.