ARP Miata head stud kit (ARP part number 218-4701), fits all years, brand new in box, purchased from Flyin' Miata: $140 plus shipping
Water pump, fits '90-'93 Miatas and other cars with B6 blocks (as long as the timing belt idler threads into the pump and not the block), made in Japan, brand new in box, purchased from Flyin' Miata: $50 plus shipping
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Christian