JORB- Just off the topic a little bit, is the engine in photo B equipped with a PCV? It almost looks like there is a slit behind the oil fill cap. Engines with the slit behind the oil fill, typically were PCV equipped. The picture is a little hazy, so I can't really tell. Anyway, if the engine is PCV equipped, there may be no need for a draft tube.
Whitedog
No, the engine is not PCV equipped. But there is 4 slits on the top of the valve cover.
Below is a picture of a PCV equipped engine.
As bowtietim observed above, the second picture in the first post has a 54/55 standard valve cover. These had 4 slits in the valve cover and had no need for a vented oil filler cap.
A PCV system needs to be sealed, so in 54/55 a non-slits valve cover was used with the PCV system. There was a hole on the carburetor side of the valve cover for one of PCV hoses.
From 1955-2nd onwards the standard valve cover had no slits.
Tim,
Just to show an example:
Here is a
picture of a PCV equipped engine.
NO slit valve cover. Engine is in 54 Chev panel 1 ton.
I never notice the PCV equipment in the picture before, certainly not the non-slit valve cover. Good Call !!
Thanks
jorb
