ARP Custom Age 625+ Cylinder Head Studs

Fitment: 7 Bolt DSM / EVO 4-9

Part #: 207-4302

Overview

The ARP Custom Age 625+ Cylinder Head Studs are engineered to provide superior strength and durability for high-performance Mitsubishi DSM and EVO 4-9 engines. Designed for enthusiasts and professionals seeking reliable head stud solutions, these studs help ensure optimal clamping force and consistent performance under demanding conditions. Crafted from a newly formulated super-alloy, they offer enhanced fatigue cycle life, tensile strength, and toughness, making them ideal for high-stress applications. Their resistance to atmospheric corrosion and oxidation further extends their service life, ensuring your engine maintains peak performance over time. Whether you're building a high-horsepower setup or upgrading your existing components, these ARP studs deliver the strength and reliability needed for serious driving. Their advanced material composition supports engine integrity during aggressive tuning and prolonged use, helping to prevent head gasket failures and maintain proper cylinder sealing.

Key Features

Designed with cutting-edge materials and manufacturing processes, the ARP Custom Age 625+ Cylinder Head Studs feature:

• Made from a proprietary super-alloy with Custom Age 625+ formulation
• Exceptional tensile strength and fatigue resistance for high-stress applications
• Complete resistance to atmospheric corrosion and oxidation
• Precision-machined for consistent thread engagement and fitment
• Engineered to provide reliable clamping force during engine operation
• Suitable for high-performance turbocharged and naturally aspirated engines
• Designed to replace standard head studs for improved durability and strength

Construction & Design

These studs are manufactured using advanced forging and heat treatment techniques to maximize strength and toughness. The proprietary super-alloy material ensures they withstand the extreme thermal and mechanical stresses typical of high-performance engine builds, providing a stable and secure cylinder head attachment.

Installation & Fitment

Installation requires proper torque specifications and procedures as outlined by ARP. It is recommended to verify fitment against your specific vehicle model and engine configuration to ensure compatibility. Proper tightening and re-torquing are essential for optimal performance and longevity.

What’s Included

The package includes a set of ARP Custom Age 625+ Cylinder Head Studs designed specifically for 7 Bolt DSM and EVO 4-9 engines, along with the necessary hardware for installation.