PDI Big Boss™ Cryo‑Treated Detroit 60 Series Head Bolt Kit

The PDI Big Boss™ Cryo-Treated Detroit 60 Series Head Bolt Kit is a high-performance hardware upgrade engineered to deliver superior strength, durability, and head gasket sealing for Detroit Diesel Series 60 engines. Designed for heavy-duty and high-horsepower applications, this premium kit provides the clamping integrity and reliability needed to maintain peak performance under the most demanding conditions.

Each Big Boss™ Head Bolt undergoes a specialized cryogenic treatment process, realigning the metal’s molecular structure to dramatically increase tensile strength, fatigue resistance, and dimensional stability. This process ensures consistent torque retention and resistance to stretching, preventing gasket failure and improving long-term engine reliability.

Ideal for engine rebuilds, performance upgrades, and preventative maintenance, the PDI Big Boss™ Cryo-Treated Detroit 60 Series Head Bolt Kit delivers the unmatched strength, consistency, and sealing performance that diesel professionals expect from PDI’s industry-leading Big Boss™ product line.