fits make: Subaru. year: 1999.

( Brand: Arp ), ( Manufacturer Part Number: 260-4702 ), ( Type: Cylinder Head ), ( Items Included: Bolts ), ( Vintage Part: No ), ( Performance Part: Yes )
The ARP Racing 260-4702 Head Stud Kit is a high-performance upgrade specifically designed for the 1999 Subaru EJ Phase SOHC engine. This kit equips your engine with ARP's renowned engineering excellence, ensuring increased durability, strength, and reliability under high-stress conditions.
This head stud kit is a direct replacement for the factory bolts and features ARP's 2000-series, 12-point, 97 psi tensile-strength fasteners. Each stud is cold-forged from 13mm hex-shaped, 8740 alloy steel, and undergoes ARP's proprietary thread rolling process for superior thread strength and fatigue resistance. The studs are then heat-treated for further increased strength and durability.
The ARP Racing head stud kit also includes ARP's unique, high-quality, 20mm ARP2000-series, domed, copper-compatible, stainless-steel locking nuts. These nuts are designed to securely hold the head studs and prevent any chance of stud movement or head gasket failure due to the increased cylinder pressures that come with performance modifications.
By upgrading to the ARP Racing 260-4702 Head Stud Kit for your 1999 Subaru EJ Phase SOHC engine, you're not just enhancing its performance potential but also ensuring its longevity. This kit is perfect for daily drivers seeking peace of mind, as well as for track enthusiasts who demand the best from their engines.
In summary, the ARP Racing 260-4702 Head Stud Kit is a must-have upgrade for any 1999 Subaru EJ Phase SOHC engine, offering unparalleled strength, reliability, and performance. Trust ARP, the leader in performance fastening solutions, to help you take your Subaru to the next level.
The ARP Racing 260-4702 Head Stud Kit for the 1999 Subaru EJ Phase SOHC engine has its advantages and disadvantages. Here's a breakdown: Pros:1. Enhanced Clamping Force: ARP head studs provide a higher clamping force compared to factory head bolts. This results in reduced engine movement during high-performance applications, reducing the risk of catastrophic engine failure.
2. Improved Head Gasket Sealing: Due to the increased clamping force, ARP head studs can help improve head gasket sealing, preventing coolant and oil leaks.
3. Durability: ARP head studs are known for their durability and resistance to failure, even under high-stress conditions.
4. Suitability for Performance Upgrades: If you're planning on increasing your engine's power output, a head stud kit like this one can help handle the additional stress.
Cons:1. Cost: ARP head stud kits are more expensive than OEM head bolts. The cost difference may be significant, depending on where you purchase the kit.
2. Installation Complexity: Installing head studs can be more complex than replacing head bolts, especially if you're not experienced in engine work.
3. Potential for Damage: There's a risk of damaging the engine or head during the installation process.
Conclusion:The ARP Racing 260-4702 Head Stud Kit is a worthwhile investment for those looking to improve the durability and performance of their 1999 Subaru EJ Phase engine, especially if you're planning on performance upgrades. However, it's crucial to consider the cost and installation complexity, and to ensure that you have the necessary skills or hire a professional for the installation. If you're not planning on pushing your engine's limits, the higher cost and installation complexity may not be justifiable.
Recommendation: If you're planning on significant performance upgrades or regularly pushing your engine hard, the ARP Racing 260-4702 Head Stud Kit is a good choice. If you're a casual driver or not planning on significant upgrades, it might be more cost-effective to stick with OEM head bolts. Always consult with a professional mechanic if you're unsure about what's best for your specific situation.
Bought these thinking I had stretched head bolts, discovered the threads pulled out of block, so sold car. Comes with all the directions, and hardware is there. Also included an old head stud I modified to help clean out the holes in block. Some of these haven even seen one full final torque.