ARP 445-3606 Cylinder Head Fasteners Kit Stainless Steel Hex Head Bolts

The ARP 445-3606 Cylinder Head Fasteners Kit delivers professional-grade engine sealing performance with stainless steel construction and precision-engineered hex head design. These fasteners are built to ARP's exacting standards, providing reliable clamping force for high-performance and competition applications.

Premium Manufacturing Process:

• Cold-forged construction ensures molecular integrity and superior strength
• Heat-treated to 180,000-200,000 psi tensile strength before thread rolling
• Centerless ground for exceptional straightness and precise concentricity
• Thread rolled after heat-treat for up to 10 times better fatigue resistance
• Each fastener individually quality controlled to ARP's zero-defect standard

Key Features:

• Stainless steel construction resists corrosion and maintains appearance
• Hex head design with reduced wrenching profile for improved clearance
• Wide-area flanged head eliminates need for valve train removal during retorquing
• Includes hardened, parallel-ground washers for even load distribution and accurate torque readings
• Select applications feature undercut short bolts that equalize stretch and prevent head gasket failures
• Precision tolerances allow cylinder heads and gaskets to align perfectly during assembly

Installation Benefits:

ARP head fasteners provide more accurate and consistent torque loading compared to standard bolts. The reduced wrenching hex allows for cylinder head service without removing valve train components, making maintenance faster and easier. The superior manufacturing process ensures each fastener delivers reliable, repeatable clamping force for optimal head gasket sealing.

Application:

This kit is designed for specific engine applications where professional-grade fasteners are required. Always verify fitment for your particular engine build. Re-torque fasteners after initial engine run-in to compensate for head gasket compression.

Trusted by professional engine builders across all forms of motorsports, ARP fasteners represent the industry standard for quality and performance. Look for the ARP stamp on each fastener as your assurance of quality.