they make a heli coile kit for this, my brother just had to do this to a b18b1 integra motor he is rebuiling, previous owner was a retard and stripped the threads and a heli coil kit saved the day!!! i'm not sure of exactly what he did but i can find out and there are others on here who have done it it seems and may know more than i do.
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I Need some WRX, 350Z, 240SX, Really any car owner to let me do R&D for Ground Kits, Please Let me See the layouts!!!