Header Bolt Kit - 6pt. 3/8 x .875 UHL (16)

The Header Bolt Kit - 6pt. 3/8 x .875 UHL (16) by ARP is an essential fastening solution for engine builders and performance mechanics who prioritize reliability and safety. Designed to withstand extreme thermal cycling, vibration, and stress, these header bolts provide a secure fit for exhaust manifold or header assemblies, making them ideal for high-performance applications.

Forged from premium alloy steel and heat-treated to exacting specifications, ARP's header bolts deliver superior clamp load retention under the severe conditions present at the engine block-to-manifold interface. The 6-point head design ensures full contact with fastener sockets, reducing the risk of rounding and slippage during installation and maintenance. This kit includes 16 pieces, each with a 3/8 inch diameter and .875 inch under-head length, tailored for robust performance.

Engine builders, restoration shops, and weekend warriors rebuilding street or competition engines will find this kit invaluable for its reliability and consistent performance. The precise threading and manufacturing tolerances ensure that torque values remain consistent across all fasteners, preventing any weak links under load. This makes the Header Bolt Kit a trusted choice for various engine applications.