BBM Head Bolt Kit - 426 HEMI

The ARP BBM Head Bolt Kit for 426 HEMI engines is designed for builders and enthusiasts who require maximum reliability under extreme cylinder pressure and thermal cycling. This fastener set is essential for high-output engines where factory hardware may not suffice, ensuring consistent clamp load and clamping force retention.

Manufactured from premium-grade 8740 chromoly steel, these fasteners feature proprietary shot-peening to eliminate surface stress risers that can lead to premature failure. The kit utilizes precise torque-to-yield geometry, allowing for superior load distribution across the head deck while minimizing the risk of thread galling or stretch failure. Each fastener is produced to exacting tolerances and undergoes rigorous quality control testing.

This BBM Head Bolt Kit is ideal for serious 426 HEMI platform builds, whether for street performance or competition. It pairs well with modern aluminum heads and is crucial for maintaining gasket integrity in demanding applications. The included ARP fastener lube further enhances installation accuracy by reducing friction variables.