Header Bolt Kit For Universal Bolt kit, drilled, uses 3/8˝ socket Stainless Hex Head

Header Bolt Kit For Universal Bolt kit, drilled, uses 3/8˝ socket Stainless 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.

these knurls cut deep into the bolt material

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

The importance of pressure plate bolts in a racing or hi-performance street application cannotbe emphasized nearly enough

Now available for all popular applications

000 psi tensile strength material where noted

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for theadditional compression of gaskets

or using a spacer for clearance

One of the most critical – yet often overlooked – fasteners used in any engine locks the timing in place

There are several important reasons why ARP’s exclusive Perma-Loc rocker arm adjusters won’t loosen like others

ARP’s Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 190

000 psi forthe 8740 material and 220

threadpitch to thread pitch