over heated the car once. and i haven't ran the car since. reason is cause a heater hose under the manifold blew a hole and i believe i've got a blown head gasket. my question is, the engine runs w/ any type of pinging noise or scraping noise, but i can't leave it on for long cause, duh!, no coolant recirculation. i figured, i have to replace the head gasket and heater hose so while the head is off, take it 2 a place, buy a head gasket kit that includes all the gaskets and seals on the head, and have a shop replace everything and tune it up. does anyone know how much this would cost if i were to take the head off my motor, B18a, and get all the gaskets/seals replaced and then reinstall the head myself? i haven't much time to take apart the head and do the work myself. if there are any ideas, anything would be very much appreciated.