ARP Intake Manifold Bolt Kits | Multiple Ford Fitments (354-2102)Intake Manifold Bolt Kit by ARP 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. Bolts are available in both hex head and 12 point types, and washers are included. Features