ARP ARP2000 Cylinder Head Stud Kit for Nissan RB20 / RB25 / RB25 NEO (202-4309)

The ARP 202-4309 Head Stud Kit features upgraded ARP2000 alloy to deliver extreme clamping reliability for high-power Nissan RB20 and RB25 builds (including RB25 NEO). This kit replaces factory M11 head bolts to eliminate head lift on heavily boosted engines.

Heat-treated to a formidable 220,000 PSI tensile strength, ARP2000 fasteners outperform traditional 8740 chromoly studs under aggressive combustion pressures.

Key Features & Benefits:

• Upgraded ARP2000 Material: Delivers 220,000 PSI tensile strength for enhanced protection against head lifting.
• RB25 NEO Compatibility: Precision length dimensions ensure full thread engagement on both standard RB25 and RB25 NEO cylinder heads.
• Thread Integrity: J-form rolled threads post heat-treat resist stress cycling and fatigue over repeated thermal runs.

Technical Specifications:

• Material / Build: ARP2000 Alloy Steel / Black Oxide
• Warranty: Official ARP Limited Warranty
• Brand: ARP