HKS GR Corolla G16E-GTS Head Studs Kit

Overview

Developed by HKS for high combustion pressure applications, this premium head stud kit is designed to provide superior cylinder head clamping force and improved head gasket sealing under extreme performance conditions.

Manufactured using ARP’s industry-leading Custom Age 625 Plus material, these studs offer exceptional tensile strength, fatigue resistance, and corrosion protection—making them ideal for high-horsepower street, track, and motorsport builds. The bottomed stud bolt design increases effective thread engagement within the engine block, helping distribute stress more evenly while supporting higher axial loads and reducing the risk of head lift.

Perfect for upgraded turbochargers, ethanol tuning, and aggressive boost levels, the HKS Head Studs Kit is a critical upgrade for enthusiasts pushing the limits of the G16E-GTS platform

Features

• Designed for Toyota G16E-GTS engines
  
• Constructed from ARP Custom Age 625 Plus alloy
• Increased head clamping force for high-boost reliability
• Bottomed stud design improves load distribution and thread engagement
• Excellent fatigue cycle life and corrosion resistance
• Ideal for motorsport and high-performance engine builds

Kit Contents

• 4x M12 head studs
• 4x M11 head studs
• 12-point flange nuts
• Hardened washers
• Assembly lubricant