Knock and smoke

water is coming out of the oil plug when I crack it open.
ya bro hate to say it but that is really no good. the oil floats on top of water and you are getting coolant directly into an oil passage or a cylinder or from between the head and the block. i would tear the heads of right there in the car and drain your oil and remove the filter and toss it. you might be able to fix it without taking the motor out of the car,if the bottom end is ok. sounds like a head gasket to me, but it could be a cracked head or intake. i hope it isnt the block or a cylinder. did you install the heads or did the shop?