Leaky 340 Head Bolt?

I think I have a head bolt leaking oil. It is the bottom, rear, passenger side bolt. My oil pressure is always between 65 psi and 75 psi. Does that bolt go thru any oil passages? I could back it out and put a washer and some RTV on it. Any advice will be appreciated. Thanks FABO.

IMG_0526.JPG

IMG_0527.JPG