ARP's header bolt kit is a premium grade choice for the installation of your vehicle's exhaust headers.
To maintain a reputation for 'zero defects', optimum quality control is ensured, and fasteners of exceptionally high quality are produced by ARP, controlling all aspects of the manufacturing process in-house where they can be closely monitored.
Extraordinary steps are taken by ARP to produce the finest products of their kind on the market today.
These components are manufactured from ARP's proprietary steel alloy 'Stainless 300' and polished to produce a beautiful finish, tolerant of heat, virtually impervious to rust and corrosion, and rated at 170,000 psi tensile strength, which is substantially stronger than Grade 8 hardware.
The bolts are 3/8" in diameter, a compact 12-point style great for tight, hard-to-reach areas, have a .875 under head length, and the set includes premium-quality washers.
