BBM Head Bolt Kit - 426 HEMI

The ARP BBM Head Bolt Kit – 426 HEMI is a professional-grade cylinder head fastening solution engineered for serious engine builders and high-performance Mopar enthusiasts. Built to replace factory head bolts on Chrysler's legendary 426 HEMI platform, this kit addresses the critical need for superior clamping force and fatigue resistance in extreme horsepower and nitrous oxide applications. Whether you're rebuilding a vintage muscle car engine or assembling a modern stroker package, quality head fasteners are non-negotiable for reliability under sustained boost and detonation.

This ARP kit features chromoly construction with black oxide finish, offering superior tensile strength compared to OEM bolts while resisting corrosion in engine bay environments. The 12-point head design provides positive engagement with specialized installation tools, allowing precise torque-to-yield application without rounding. Chromoly fasteners maintain consistent preload across thermal cycling, critical for maintaining head gasket seal integrity in high-output applications where combustion pressures and temperature swings exceed factory specifications. The black oxide coating enhances appearance while protecting against oxidation—essential for long-term reliability in both street and competition engines.

Engine builders and Mopar restorers benefit from this kit's direct compatibility with 426 HEMI cylinder head applications across generation and variant. Installation requires proper torque sequence and an ARP head bolt socket (sold separately) for safe, repeatable results. TacticalSurplusUSA supplies OEM-equivalent and performance fastening solutions for customers who demand uncompromising quality; this kit represents ARP's Pro Series standard. Weighing 8.55 lbs and shipped in professional packaging, the BBM Head Bolt Kit integrates seamlessly into complete engine assembly workflows.