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Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
- No EU import duties. - Ships within 3-5 business days. (USA) - Ships with 8-12 business days. (International)
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
(EJ2.0L 2.5L DOHC) Built for the Subaru Impreza... Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That's why ARP head studs are popular among leading Sport Compact/Import racers.You should know that ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heattreat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned something that won't happen with inferior quality head studs.ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat.You will also note that ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the stretch of both studs, which makes for a more consistent clamping force one that compensates for head gasket compression when the head is installed. This helps prevent blown head gaskets, and assures optimum sealing!
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What is the material of the ARP 2604701 Bolt Kit?A: The ARP 2604701 Bolt Kit is constructed from premium grade eight thousand seven hundred forty alloy. This material is known for its superior strength and durability.
Q: How strong are the head studs in this bolt kit?A: These head studs are heat-treated to two hundred thousand psi, providing exceptional strength and reliability for high-performance applications.
Q: What is the size of the bolts in the ARP bolt kit?A: The bolts in this kit are sized M twelve, making them suitable for a variety of Subaru models.
Q: How do I install the ARP 2604701 Bolt Kit?A: To install the ARP 2604701 Bolt Kit, ensure you follow the manufacturer's guidelines for torque specifications and sequence. Proper installation is crucial for optimal performance.
Q: Is the ARP bolt kit compatible with my Subaru?A: Yes, this bolt kit is compatible with Subaru two point five liters and two point zero liters from various model years, including two thousand two to two thousand nine.
Q: Are there undercut studs available in this kit?A: Yes, the ARP 2604701 Bolt Kit features specially designed undercut studs that help provide more consistent clamping force.
Q: How do I maintain the ARP head studs?A: To maintain the ARP head studs, ensure they are properly torqued during installation and periodically check for any signs of wear or damage.
Q: Can I use this bolt kit in high-performance applications?A: Yes, the ARP 2604701 Bolt Kit is specifically designed for high-performance applications, offering enhanced sealing and reliability.
Q: What should I do if the bolts arrive damaged?A: If the bolts arrive damaged, contact customer support immediately for assistance with returns or replacements.
Q: Is the ARP bolt kit easy to install for beginners?A: While the ARP bolt kit can be installed by beginners, it is recommended to have some mechanical experience or consult a professional for best results.
Q: How does the heat treatment process affect the bolts?A: The heat treatment process increases the fatigue strength of the bolts, making them significantly more durable and reliable under high-stress conditions.
Q: Does this kit come with installation instructions?A: Yes, the ARP 2604701 Bolt Kit typically includes installation instructions to guide you through the process.
Q: What are the benefits of using ARP head studs?A: Using ARP head studs provides better alignment and sealing, prevents blown head gaskets, and ensures consistent clamping force.
Q: What Subaru models are compatible with this bolt kit?A: This bolt kit fits Subaru models, including those with two point five liter and two point zero liter engines, from the years nineteen ninety-four to two thousand nine.
Q: Can I return the ARP bolt kit if it doesn't fit?A: Yes, you can typically return the ARP bolt kit if it does not fit your vehicle, following the retailer's return policy.
Q: Are these studs made with better technology compared to others?A: Yes, ARP studs are thread rolled after heat-treating, which provides much better fatigue strength compared to those threaded before heat-treat.
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