ARP Stainless Steel Header Bolt Kit - 3/8" x .750" Under Head Length (12 Pieces) - Hex SP140BK 75 in Bore

75 in Bore

10 in Stroke

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ARP Stainless Steel Header Bolt Kit - 3/8" x .750" Under Head Length (12 Pieces) - Hex SP140BK 75 in BoreARP 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