I thought so too but I was wrong. My 440-495 could have been destroyed if I didn't have such good luck.
I started up a fresh rebuild and found a rear main seal leak. I pulled the pan to get access and in the pan I found blasting sand from when I cleaned all the paint from the pan a month prior. Sand must have been trapped behind the baffles. I had rinsed the pan out with a hose but obviously didn't get it all out.