Buick 350-455 cid, 14 pack, 3/8" Size, 1.670" Over All Length, Hex head, Stainless 300, ARP Header Studs 420-1411.
Manufactured in a variety of premium grade bolt and stud kits, ARP Buick Header Bolts & Header Studs facilitate installation of exhaust headers, including the popular stainless stud kit with 12-point nuts.
Stainless 300 material ARP Buick Header Bolts & Header Studs are not affected by corrosion or extreme heat, making it ideal for the application.
The compact 12-point nut lets you easily slip a socket close to the pipe!
Each ARP accessory stud or bolt kit includes the specific number of parts for your application, plus premium-quality washers and hex or 12-point nuts, as required.
Manufactured with a unique nut-starter nose, studs help prevent cross-threading.
ARP Buick Header Bolts & Header Studs come either black oxide chrome moly or Stainless 300, both nominally rated at 170,000 psi tensile strength; substantially stronger than Grade 8 hardware.
Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening.
Studs are measured OAL (Over All Length) and Bolts are measured UHL (Under Head Length).
