LS Cylinder Head Studs set fits 2004+ LS1 LS2 LS3 L98 all same Length. 12 Point, Chevy LS, Holden LS

ARP 234‑4317 Pro Series LS Cylinder Head Studs Kit. Fits 2004+ GM LS1, LS2, LS3 Engines

Helps keep head gaskets sealed under boost, high RPM or heavy load applications by extra clamping forces. Also improved cylinder block life by studs not pulling on the aluminium threads during installation. Cold‑Forged Cylinder Head Studs with 12‑Point Nuts for boost and high clamping loads.

The ARP 234‑4317 Head Studs Kit is a Pro Series cylinder head stud set engineered for 2004‑onwards GM LS‑series engines, providing premium clamping strength and reliable performance for builds with factory‑length stud requirements. Studs are forged from high‑strength 8740 chrome‑moly steel, heat‑treated before thread rolling and precision‑machined to exact tolerances. Each kit includes hardened parallel washers and 12‑point nuts to ensure even load distribution, accurate torque readings, and dependable long‑term sealing. Whether you’re building a naturally aspirated or forced‑induction LS engine, ARP’s head stud kit reduces the risk of cylinder head lifting and gasket failures under high load and high RPM conditions, delivering peace of mind with every build.

ARP 234-4317 Specifications: 

Cylinder Head Studs fits:  2004 + Holden SS, HSV Commodore with LS1, LS2, LS3, 5.7L, 6.0L, 6.2L, L98 V8 Engines. 

• Material: Cold‑forged 8740 chrome‑moly. 190 000 psi rated

• Threads: Rolled Threads Heat treatment before threading improves tensile strength and fatigue resistance.

• Nuts & Hardened Washers: Point nuts. Parallel‑ground washers provide consistent torque and load distribution.

• Engine Compatibility: Designed for GM LS1, LS2, LS3 and compatible LS variants with same‑length stud setups. L98

• Direct OEM Fit: No modifications needed — fits directly into LS blocks for a hassle‑free upgrade

• Best Quality - Made in USA