ARP head studs provide superior cylinder head clamping and reduced distortion and should be considered essential for every performance engine build. The manufacturing process involves centerless grinding of the blanks for near perfect concentricity and thread rolling after the heat treatment for significantly increased fatigue strength. Standard material is ARP2000 alloy with a 220ksi tensile strength. Custom Age 625+ is an optional high strength (260ksi) material for more demanding applications.
NOTE: EJ DOHC head stud kits can be used in FA20DIT applications even though there is a specific FA20 kit.
Usually ships in 2 to 3 days.
| Part No. | Description | Application | Price Ea. | Add to Cart |
|---|---|---|---|---|
| ARP-S4701 | ARP Head Stud Kit ARP2000 | Subaru EJ DOHC | $241.00 |  |
| ARP-S4704 | ARP Head Stud Kit Custom Age 625+ | Subaru EJ DOHC | $575.00 | |
| ARP-S4301 | ARP Head Stud Kit ARP2000 | Subaru FA20 | $264.00 | |
| ARP-S4702 | ARP Head Stud Kit ARP2000 | Subaru EJ SOHC | $281.00 | |
