ARP Head Stud Kit for EJ20 and EJ25 engines. Search no longer for the best Head Stud Kit you can wish for in your Subaru EJ engine. We've sold over a 1000 sets of these, being used in all levels of motorsports! If you're not sure whether you need 260-4702 or 260-4701, contact us!
These are the 11mm head studs and are a must have for anyone rebuilding their EJ20 or EJ25 engine. These are made from ARP2000 alloy and better than any aircraft quality material. These have 1000% better fatigue resistance than your standard Subaru head studs. Allowing much higher performance compared to stock products.
Modification to the block or cilinder head is not required, these will bolt straight into your engine.