117-4220

Citroen 206 TU5JP4 / Peugeot 106 TU5J4 1.6L 16v ARP Head Stud Kit L19 Material

This Kit was designed for drag racers or street racers, running on high boost engines, that need more clamping force and tensile strength than the ARP2000 Stud Kit can offer. If you are looking for the best option, you've found it, as these are 15% stronger than ARP2000 and have a 55% increase in tensile strength over the OEM torque to Yield (TTY Bolts) !! Due to many “head lifting” issues on Citroen and Peugeot engines running in excess of 25 PSI, a stronger stud had to be custom made to meet the demands of today's top engine builders and racers alike. These studs are made from vacuum melted alloy steel with sufficient chromium and carbon to achieve high hardness and superior strength. Like most high strength, quench and temper steels - L19 requires special care during manufacturing to avoid hydrogen embrittlement. This material is easily contaminated and subject to stress corrosion. It must be kept well-oiled and not exposed to moisture. Recommended for applications boosting higher than 30 PSI. No modification to your Citroen/Peugeot Cylinder Head or Block is required as these are a direct drop-in replacement for the OEM Head Studs.

Key Features:

• 15% stronger than ARP2000
• 55% increase in tensile strength over OEM TTY bolts
• Recommended for applications boosting higher than 30 PSI
• Made from vacuum melted alloy steel
• Tensile strength: 260,000 PSI
• Includes nuts, washers, and ARP Assembly Lubricant