ARP Black Oxide Header Bolt Kit - 12-Point - 3/8" x 1.00" Under Head Length (16 Pieces) 57700BK then cadmium plated for corrosion

then cadmium plated for corrosion resistance

Accelerator Pump Diaphragm

This is the large size version with a 20 degree angle

Easy To Install With Hand Tools

1967-1974 Buick Electra

ARP Black Oxide Header Bolt Kit - 12-Point - 3/8" x 1.00" Under Head Length (16 Pieces) 57700BK then cadmium plated for corrosionARP 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 Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application. What's more, thecompact 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