Just finished my swap lq9 into obs. Started it to check things out. Started right up. Idled for about 3 minutes. Shut it off to double check a few things. Then started it again. Once it started it blew a hole in my.oil pan. Wtf could cause this? No knocking no issues at all on first start then BOOM. !!? now I have to start over. Pull this motor and find a new one. Pissed to say the least. This pic is from under the truck. Drivers side front of the oil pan