Header Bolt Kit for Chevy Big Block 3/8in Dia. 1.000in UHL Black Oxide Hex Head

Header Bolt Kit for Chevy Big Block 3/8in Dia. 1.000in 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.

You will also note that ARP offers specially undercut studs forseveral engines

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

ARP manufactures a variety of special application-specific bolt and stud kits

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

You have a choice between conventional hex head bolts and nuts or compact

Hardened parallel-ground washers are included with each kit

limited rule oval track competition and street use

This helps prevent blown head gaskets

It costs a lot more to do it this way

there’s not a better stud setupon the market today

when the material iseasier to machine)

but the results are well worth the extra effort