S/S Header Stud Kit - 3/8in x 1.670in OAL (16)

The S/S Header Stud Kit – 3/8in x 1.670in OAL (16) from ARP is an essential upgrade for serious engine builders and performance mechanics working on high-heat applications. This kit is designed to replace factory bolts at the cylinder head-to-manifold interface, addressing issues of fastener failure and exhaust leaks that can occur in modified or high-output engines.

Constructed from proprietary stainless steel, this 16-piece kit is engineered for durability in extreme environments, such as turbocharged builds and racing engines. The stainless steel material not only resists corrosion but also maintains clamp load under high thermal stress, outperforming mild steel or cast-iron studs. The 3/8-inch diameter and 1.670-inch overall length (OAL) specification ensure compatibility with common small-block and mid-size engine platforms.

Engine builders upgrading factory header bolts will find this kit invaluable, as it allows for repeated disassembly without the risk of stripping threads. ARP's precise manufacturing tolerances promote uniform load distribution across all 16 studs, preventing localized gasket failure and exhaust blow-by. This kit is ideal for anyone looking to enhance the reliability and performance of their modified engines.