oldburbs, are you asking about the engine in your pictures or another engine? The 63 and later 194/215/230/250/292 engines have a spin-on oil filter on the passenger side near the front. The following link is to the GMC versions of these engines.
http://www.6066gmcguy.org/Inline6.htm
I hope this helps. If not, never mind. smile


Professional Novice