Hey guy's kind of new to the sight, I have a 5.3 motor that has been punched out to 5.7 all factory LS1 rotating assmbly, 5.3 heads, all new gaskets rings bearings etc. I recently pulled the spark plugs because the motor was hydro locked and just wanted to make sure it turned over okay. When I pulled the #5 plug water poured from the cylinder. So I took the truck back to the guy who built the motor with a new head, gasket, and head bolts. When he pulled the head he said he didn't find any cracks in it, any ideas on where else the water could be coming from?

 

head gasket ?

 

Sorry to hear that dude. I agree with the head gasket diagnosis. A cracked cylinder is also a possibility. Good luck!!