Header Bolt Kit For Oldsmobile 330-455 cid Stainless Hex Head

Header Bolt Kit For Oldsmobile 330-455 cid 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.

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

A polished finish makes them an

quench and temper steels – L19 requires special care to avoid hydrogen embrittlement

Both models feature a large diameter

and monitor overall length during installation

with ARP’s exclusive (and patented) Wave-Loc technology providing substantial benefits

Our kits come in 8470 or polished ARP Stainless and cover spacers up to 3

including use of a premium grade chrome moly alloy

You will note that ARP studs feature a special “bullet nose” to guide the nut accurately into place

there’s not a better stud setupon the market today

ARP’s heat-treated 8740 chrome moly wheel studs are a much-needed replacement for any car engaged in oval track or drag racing competition

000 psi and High Performance Series that are rated at 180