Pro LSX/RHS Head Stud Kit

The ARP Pro Series head stud kit (part number 234-4319) is engineered for Gen III and Gen IV LS engines, specifically for LSX and RHS blocks. These Pro Series studs are cold-forged, ensuring superior molecular integrity, and are heat-treated before thread rolling and machining. Constructed from ARP2000 material, they offer a tensile strength of 220,000 psi, providing the necessary clamping load to withstand extreme conditions. Each kit comes complete with hardened parallel washers. These washers are crucial for distributing the load evenly across the cylinder head and ensuring accurate torque readings during installation. The ARP2000 alloy used in these studs is rated significantly higher than standard aircraft quality alloy steels, making them a robust choice for performance applications. ARP offers hundreds of head stud models, making these fasteners suitable for virtually any engine style. The 12-point nuts included in some kits further enhance ease of installation and reliability.