I blew my head gaskets and am currently in the process of changing them. i have already pulled out my heads and found the bad gasket. my question is what is the best way to know if the heads are warped? they look ok but that is just by looking. is there any way to know if they are. the engine did get really hotbut i was getting coolant only in one cylinder so i just need to know how good the possibilty of the head being warped is.