Standard OEM head bolts are "torque-to-yield" fasteners designed to stretch, making them a significant weak point when power levels increase. ARP Head Studs provide a much higher clamping load and superior tensile strength, making them essential for any serious performance build. By utilising a stud rather than a bolt, you ensure a more accurate and even load across the head gasket while eliminating the twisting force (torsion) during assembly.
Our sourcing capabilities focus on ARP’s most resilient alloy grades:
• ARP2000 Series: The industry standard for high-boost Nissan RB26, Toyota 2JZ, and Subaru EJ engines. Rated to a tensile strength of approximately 220,000 psi.
• Custom Age 625+: The ultimate solution for elite-level builds. With a tensile strength of over 260,000 psi, these are designed for extreme motorsport applications where secondary head lifting is not an option.
Based on the Central Coast, NSW, we provide the technical expertise to ensure you receive the correct kit and torque specifications for your assembly. We work closely with our supply network to ensure your fasteners are sourced and despatched with speed.