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Elite Clamping Force for Subaru DOHC Engines

When your Subaru EJ-series DOHC engine is pushed to the limit, standard fasteners simply aren't enough. The ARP Custom Age 625+ Head Stud Kit (Part #260-4704) represents the pinnacle of fastener technology, designed specifically for high-boost, high-horsepower applications. This kit is the preferred choice for professional engine builders and serious enthusiasts who demand absolute reliability.

Why Choose Custom Age 625+?

• Advanced Material: Crafted from Custom Age 625+ material, offering superior tensile strength compared to standard 8740 chromoly.
• Extreme Pressure Handling: Engineered to withstand the massive cylinder pressures generated by aggressive turbo setups.
• Optimal Sealing: Ensures the cylinder head remains perfectly seated, preventing head gasket failure under extreme conditions.
• Perfect Fitment: Tailored for DOHC EJ engines found in the WRX, STI, Legacy GT, and Forester XT.

This kit is essential for anyone running high boost or aftermarket turbochargers on their EJ platform. The Custom Age 625+ alloy provides a unique combination of high fatigue resistance and extreme tensile strength, ensuring that your engine holds together when it matters most. Installation is straightforward, providing a significant upgrade over factory hardware. Whether you are building a track-focused machine or a high-performance daily driver, these studs provide the peace of mind that your head gasket will stay sealed. Elevate your engine build with the best in the business. For premium engine components, visit GGCRACING.