Header Stud Kit for Oldsmobile 330-455 cid Stainless 12-Pt Head

Header Stud Kit for Oldsmobile 330-455 cid Stainless 12-Pt 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.

rated at 190

with handy 12-pointor standard hex heads

Wide underhead flange design and companion flat washers provide even load distribution and facilitates optimum sealing of gasket surfaces

With increased performance you need the extra security that ARP flywheel and flexplate bolts can provide

and precision J-form threads rolled after heat-treat to create a fastener that has threads 2000% stronger than others

Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12-point nuts

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

To cure this all-too-common problem

Washers and nuts included where applicable

and rear axle housings

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

000 psi for the ARP2000® material