"Ray, later GMC big trucks had a PCV setup with your configuration, partially shown here."
Flxible,
Thank you so much. That is really food for thought. Apparently in this version the suction is applied to the valve cover. Is that correct? If that vacuum routing were used, an air filter could be attached to the draft tube to keep dirty air from entering the crankcase. What do you think?
"Here are a couple pictures of 235's I did."
Dave,
The pictures of the oil fill tube at the side of the block modified for a pcv valve are also really valuable food for thought. I can't cap that tube on my '36 engine as it is the only way to put in engine oil.
Fixible and Dave, since you have both done this conversion successfully do you know if it matters whether the air flow through the crankcase that admits air through the valve cover and removes it through the crankcase or vise versa?
I think my approach here will be to find another draft tube and valve cover to modify so I can keep intact originals. That what I did on the 3.55 rear axle conversion (kept the original '36 rear axle) that I did following your suggestion Dave. Thank you again for that. It is really working out nicely.
