I hit a huge puddle today and did what my friend calls a hydro-lock, so he had me jam it into park after we pushed it to get it going, which worked but it had a knock that slowly got better. We ran it for about 5 minutes until the WHITE smoke seemed to stop and then we drove it around and all was sounding good then suddenly, BANG! and now it sounds like, to him, that it threw a rod. WTF do I do? I can't believe this all got caused by a f'ing puddle. He says if we can get a cheap engine that it would be better than rebuilding.