pol leaks from valve cover breather

[Jimmy Coombs]

Does the 1963 engine have one or 2 oil return passages?

I have an oil leak from the breather.

Edited February 25, 2010 by Jimmy Coombs

[Gunslinger]

The heads are identical...whatever one has, so does the other.

You might have a clogged PCV valve. That can cause that. Usually, but not always, besides oil you'll notice white milky crap as well. If that's the problem, clean or replace the valve. If that doesn't do it, you might have excessively worn rings or clogged oil passages. You can run a can of engine flush through it, then change the oil immediately and see if that helps.

Edited February 25, 2010 by Gunslinger