LS HEAD STUDS SET LS1 LS2 LS3 all same Length bolts 2004+ 12 POINT HEAD CHEV HOLDEN LS

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

These ARP Part# 234-4317 Head Studs fits the 2004 + Holden Commodore with LS1, LS2, LS3, 5.7L, 6.0L, 6.2L, L98 V8 Engines. 

Cold‑Forged Cylinder Head Studs with 12‑Point Nuts for boost and high clamping loads when required. 

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.

• Premium Material & Strength: Cold‑forged 8740 chrome‑moly studs rated for performance engine demands.

• Heat‑Treated & Thread‑Rolled: Heat treatment before threading improves tensile strength and fatigue resistance.

• 12‑Point Nuts & Hardened Washers: 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.

• Improved Engine Reliability: Helps keep head gaskets sealed under boost, high RPM or heavy load applications.

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

• Best Quality - Made in USA