Some water got in the 413 I picked up to use as a set up engine for my Dart. The crappy part about having a tiny garage, full storage and a host needing a fluid swap. The back story, the engine was built, assembly lube used judiciously, break in oil with zinc additive, started and ran for a few minutes "to see how it sounded" then shut off. That was 3 years ago. I got it not too long ago and had it covered in the back if my truck. It was dry up til last week. Went to get the engine out as I had fixed the hoist. I noticed a small tear and knew I was going to see water when I dumped the oil. Yep, but it looked like when coolant was in the oil, that lighter brown crap. I figure it might be that break in oil, or assembly lube. Not sure, that was the least of my concerns. Well today is 2 days later and my friend had an engine stand freed up so.i borrowed it. I took the oil pan off and it wasn't as bad as I thought it might be, hut one rod is brown as my last name is. Everything else looks pretty good considering there was at least 1 & 1/2 gallons of water, yep! There is only very slight surface rust on the counterweights. Input some oil back down the valley when I dumped the old crap. Definitely keeping it "wet" so it doesn't flash rust. Gotta sleep some before work, but aside from dumping oil down the valley and trying to get all I can wet with oil, should I do anything else? I might just go crazy this weekend and try to stuff this pig in the car to get it started if it's not toast. I did turn the engine over and didn't notice any drag like with a rusty crank, but it was just after the oil was drained. It felt nice and tight like when I first picked it up, turns over freely, but firmly until the cylinder pressure bleeds off.