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ARP 11mm Head Stud Kit for Subaru WRX STI EJ25 Engines
The ARP 11mm Head Stud Kit is engineered for superior engine fastening, crucial for both stock and high-performance Subaru EJ25 applications. Constructed from proprietary ARP2000 alloy, these studs offer exceptional tensile strength, surpassing standard aerospace-grade materials. Each stud undergoes precise heat treatment to 220,000 PSI and is subsequently thread-rolled, enhancing fatigue resistance by 1000%. This meticulous manufacturing process ensures optimal cylinder head clamping force, preventing head gasket failure under extreme operating conditions. The kit includes all necessary hardware for a complete and reliable engine build.

                                                            
                        Material                        ARP2000 Alloy                      
                                          
                        Stud Diameter                        0.433 inches (11mm)                      
                                          
                        Tensile Strength                        220,000 PSI                      
                                          
                        Manufacturing Process                        Precision Heat-Treated, Thread-Rolled                      
                                          
                        Fatigue Resistance                        1000% Greater than Stock                      
                                          
                        Corrosion Resistance                        High Atmospheric and Oxidation Resistance                      
                                          
                        Kit Contents                        12 Head Studs, 12 12-Point Nuts, 12 Washers                      
                                          
                        Application Location                        Cylinder Head                      
                                          
                        Head Alteration                        None Required

ARP 11mm Head Stud Kit for Subaru WRX STI EJ25 Engines

SKU: arp260-4701
$303.53Price
Quantity
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