Our water pump housing bolt kit includes the bolts shown below to attach a water pump housing to your engine block. Supplied in a good looking ARP polished stainless steel, these are exactly what people mean when they say "show quality." Made from ARP's proprietary "300" stainless steel alloy, they are rated at a minimum 170,000 PSI, which is even stronger than a grade 8 bolt! And, you can't beat the quality, shine and corrosion resistance of polished stainless. Nothing resists the ravages of weather, time and even repeated tightening and loosening like stainless. These are truly maintenance free! Matching polished stainless washers are included. Considering these bolts are located at the front top of the engine, they're one of the first things you see when the hood is opened, so small details like this can really make a car "show quality." The missing bolt on the lower left side is included with our 129-1034 "ARP Stainless Alternator bolt kit," since the type of alternator brackets being used will affect the length of this bolt. The missing bolt on the upper right hand side of the housing is used to hold the power steering brackets on (used only with power steering cars, of course) and it is supplied with our 109-1513 "Power steering bolt kit" if needed.