I had a really bad head gasket leak on my stock gsr head gasket. I bought an aftermarket head gasket from summit racing (copper) and installed it. I torqued everything to spec. I drove it maybe 15 miles and looked at the motor. Its leaking around the head gasket again. Does it need to be re-torqued after driving? Also, I got the bottom of the head shaved to help seating. The motor overheated quite a bit before the installation of the head gasket, but someone said it would only warp the block if it stayed really hot. Help would be much appreciated on this situation.

Also, my tps sensor is bad, so if anyone has one to sell I would buy it from you.

Thnx

 

Were you using OEM torque spec, or the headgasket manufacturer's torque spec? Sometimes headgasket makers specify more torque than an OEM gasket, especially if they're metal gaskets. Also, did you reuse the OEM headbolts? Those are supposed to be replaced if you pull the head. Other than that, are you sure the gasket is oriented correctly(not upside-down, backwards, etc)? If you think your block is warped, then it would need to be decked to seal properly, but since you've already shaved the head, that could yiled a higher c/r than you may want. It may also move your pistons dangerously close to your valves. Before changing anything, I would go ahead and retorque everything.

 

thats a good point. I also heard that after putting the gasket on, you would want to run your car and retorque anyways. No I didn't replace the head bolts, but that shouldn't have anything to do with the headgasket leak. It will still bolt the gasket securely.
Im sure the gasket is the right one and it is on properly. Also, I got a thicker head gasket to compensate for the shaved head. No c/r problem.
Thnx for help