Hi I have a 2002 Chevrolet Prizm 1.8L L4 1ZZFE 16 Valves 155K miles (corolla engine) It had a warped head that I has professionally cleaned, inspected and milled. I just got it back together and the gasket appears to be leaking. Moisture and white smoke from the tail pipe. I used an OEM head gasket and torqued it by the book. When I first got the car back together It was running very rough due to a broken Variable Valve Timing (VVT) Oil Control Solenoid. The water pump bolts and intake manifold bolts had worked loose. I am wondering if the head bolts could have worked loose also? Also, since the head was milled could the head bolts be to long now? I was thinking I might need to re-torque the bolts. I had used new bolts. Do these bolts stretch and need replaced again? Suggestions?