Re: What size oil pan does this look like?
10-12 quart. The large oil capacity pans are designed to cool oil on racing engines by being in the flow of air under a car. Useless on a marine engine. Most race engines for that matter too. Engines spinning above 4000 rpm for long periods of time can benefit. I prefer liquid immersed oil coolers for marine racing applications.
Nice looking engine though! What are the specs?