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We offer ARP quality in a black oxide version of the high volume oil pump bolt & washer kits. These are for use ONLY with Melling High Volume oil pump, not standard. Because the Melling High Volume pumps use taller rotors and a larger body, for proper thread depth engagement when bolting the pump to the block, they require slightly longer bolts than a standard pump would. We've researched the exact size needed, and sourced them in ARP's black oxide steel alloy, which are rated at a minimum 170,000 PSI... even stronger than a grade 8 bolt! They also feature a reduced diameter 3/8" drive 12pt head. Kit includes 4 bolts with matching black oxide washers. Small details like this can really make a car "show quality."
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