ARP Head Stud Kit for Evo 8/9 & Eclipse 4G63 2nd Gen 03-06

ARP Head Stud Kit for Evo 8/9 & Eclipse 4G63 (2nd Gen) 2003–2006 Precision-engineered ARP head studs provide consistent clamping force and exceptional durability for Mitsubishi 4G63 engines. This direct-fit kit is formulated for Evo VIII, Evo IX and 2nd-generation Eclipse 4G63 (2003–2006), making it perfect for street, track and competition builds. Fitment: Mitsubishi Evo 8/9, Eclipse 4G63 (2nd Gen, 2003–2006) Material & strength: High-tensile alloy fasteners engineered to resist stretch under high boost and repeated thermal cycles Sealing performance: Improved head-to-block clamping maintains gasket integrity at elevated cylinder pressures Complete kit: Includes all head studs, hardened washers and ARP nuts required for full installation Installation: Direct replacement to factory head dimensions — typically no machining required Benefits include reduced cylinder head lift, minimized risk of gasket failure and more consistent combustion sealing for boosted and high-output 4G63 engines. Ideal for tuned street cars, time-attack builds and professional motorsport applications. Trusted engineering: ARP fasteners are designed and tested for motorsport use and backed by decades of performance pedigree. Upgrade your 4G63’s reliability and power potential with this proven head stud kit.