ARP stainless steel intake
manifold bolts are 15 percent stronger than Grade 8 steel bolts and have a
wide-area flange for better load distribution. They also have
precision-rolled threads, which prevent galling and promote more
consistent torque loading. These bolts are both corrosion and
heat-resistant and come highly polished. Hex-head and 12-point types are
available, and washers are
included.