3/8-16 x 2.000 Stud - Exhaust Header

The 3/8-16 x 2.000 stud exhaust header from ARP is a critical fastening component engineered for high-temperature exhaust manifold and header applications. Built for enthusiasts and professionals who demand reliable, repeatable clamping force in demanding under-hood environments, this chromoly stud replaces stock hardware with premium fastening technology. Whether you're assembling a built engine, restoring a performance classic, or upgrading from factory equipment, ARP studs deliver the precision and durability required for long-term reliability in extreme conditions.

Manufactured from chromoly steel and finished in black oxide, the 3/8-16 x 2.000 stud offers superior strength and corrosion resistance compared to mild-steel hardware. The 3/8-inch diameter with 16 threads per inch (TPI) specification ensures proper engagement with matching nuts or threaded flanges on exhaust manifolds and headers. Black oxide coating provides both aesthetic appeal and a protective barrier against rust and oxidation in the heat-rich exhaust bay. Each individual stud is precision-manufactured to tight tolerances, guaranteeing consistent preload and even clamping pressure across all fastening points—critical for preventing header leaks and exhaust system movement.

The 2-inch length makes this stud ideal for universal exhaust header applications where standard fasteners fall short. Mechanics and engine builders rely on ARP studs to secure high-temperature joints that experience constant thermal cycling and vibration. Installation is straightforward: thread studs into the engine block or manifold flange, then secure headers or flanges with matching nuts. For optimal performance, use ARP-recommended torque values and apply anti-seize lubricant to threads. This is a single stud; determine your total quantity based on header bolt pattern and purchase accordingly to complete your fastening assembly.