ARP Performance Head Stud Kit (Z20LEH)

ARP Head Studs are the gold standard for securing the cylinder head on high-performance and boosted Z20LEH engines. Designed to eliminate head lift and maintain consistent clamping force under extreme cylinder pressures, these studs are essential for any tuned, hybrid or forged build.

Manufactured from ARP’s premium alloy steel and heat-treated for maximum strength, this kit is ideal for reliable power on road or track.

🔥 Features

Genuine ARP head stud kit

Prevents head lift on high-boost builds

Extremely high tensile strength

Superior clamping force vs OEM bolts

Reusable (unlike factory stretch bolts)

Perfect for forged engines, hybrid turbos, or remapped setups

📦 What’s Included

Full set of ARP head studs

Matching nuts & washers

ARP Ultra-Torque fastener lube

🛠 Recommended For

300–500bhp+ Z20LEH builds

Hybrid & big-turbo applications

Forged pistons & rods setups

Track or fast-road use

Any engine where reliability matters

📌 Fitment

Z20LEH (Astra VXR)

Also suitable for Z20LEx builds sharing the same head architecture