ARP Header Stud Kit - 12pt. 3/8 x 1.670 OAL (12) 100-1402

Header studs are critical fasteners that secure your exhaust manifold to the cylinder head, and they experience extreme thermal cycling and vibration in high-performance applications. Factory bolts can stretch, loosen, or fail under sustained heat and engine loads, leading to exhaust leaks and lost power. ARP's chromoly construction and precise engineering eliminate these failure points, ensuring consistent clamping force across your Small Block Chevy engine.

This 12-piece kit features ARP's proprietary 12-point nuts for superior grip and reduced slippage during installation. The black oxide finish resists corrosion while maintaining the structural integrity of 4130 chromoly studs, making them ideal for street, strip, and road race environments. Whether you're rebuilding a classic engine or upgrading an existing setup, these studs deliver the reliability professional racers depend on.

• 3/8 in. diameter
• 1.670 in. OAL
• 4130 chromoly construction
• Black oxide finish
• 12-point nuts included
• Set of 12 studs
• Small Block Chevy fitment
• Bolt-on installation
• MPN: 100-1402