Header Bolt Kit for Chevy Big Block 3/8in Dia, 0.875in UHL, Black Oxide Hex Head

Header Bolt Kit for Chevy Big Block 3/8in Dia, 0.875in UHL, Black Oxide Hex HeadARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The ARP Stainless material is not affected by corrosion or extreme heat, making it ideal for the pplication. Whats more, the compact 12 point inut lets you easily slip a socket close to the pipe. Studs are manufactured with a unique nut starter nose that helps prevent cross threading.

Install an ARP cam bolt kit and end your camshaft timing worries

Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading

This procedureinvolves about ten very slight cuts and results in an exceptionallystraight part

000 psi (which is 15%stronger than Grade 8) and kits come complete with hardened parallel-ground washers

with threads rolled after heat treat to ensure the optimum fatigue strength

Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening

Following heat-treat

000 psi bolts that let you exert maximum clamping force

000 psi for the ARP2000® material

Simply stated

substantially stronger than Grade 8 hardware

If you have ever installed a rocker stud into a cylinder head and watched it wobble as it screwed in – you knew from the beginning that the rocker geometry was going to be inconsistent all over the place