Header Bolt Kit for Chevy Small Block 3/8in x .750in Black Oxide Hex Head

Header Bolt Kit for Chevy Small Block 3/8in x .750in 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.

You’ll note that the studs have a radiused bullet nose that serves to locate the pan rails

Specialfeatures include 1/4

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

An extralarge radius base offers greater resistance to flex

heat-treated in-house to 190

Look forARP stamped on each stud as your assurance of quality

They are both forged from aerospace alloy and heat-treated prior to thread rollingand machining

That’s whythe fastener experts at ARP have developed special bolts that are far superior to OEM hardware

It costs a lot more to do it this way

Bracket Racing

when the material iseasier to machine)

This procedure (done only to the shorter studs)more equalizes the “stretch” of both studs