ARP Headstuds suit Subaru WRX and STI..

ARP SKU: 260-4701
ARP Headstuds suit Subaru WRX and STI.. - Sydney Performance Parts & Tyres - Prestons Sydney Australia

ARP Headstuds suit Subaru WRX and STI..

ARP SKU: 260-4701
Regular price $429.00
/

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there's not a better stud setup on the market today.

For openers, ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.

Following heat-treat, 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 (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.

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 - and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!

Premium quality heat-treated 8740 chrome moly steel head stud kits are available for most every domestic and import applications. You won't find a better quality stud on the market from any other source. Look for ARP stamped on each stud as your assurance of quality.

Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1994 Subaru STI GC8
  • 1994 Subaru WRX GC8/GF8
  • 1995 Subaru STI GC8
  • 1995 Subaru WRX GC8/GF8
  • 1996 Subaru STI GC8
  • 1996 Subaru WRX GC8/GF8
  • 1997 Subaru STI GC8
  • 1997 Subaru WRX GC8/GF8
  • 1998 Subaru STI GC8
  • 1998 Subaru WRX GC8/GF8
  • 1999 Subaru STI GC8
  • 1999 Subaru WRX GC8/GF8
  • 2000 Subaru STI GC8
  • 2000 Subaru WRX GC8/GF8
  • 2001 Subaru STI GDB
  • 2001 Subaru WRX GDA/GGA
  • 2002 Subaru STI GDB
  • 2002 Subaru WRX GDA/GGA
  • 2003 Subaru STI GDB
  • 2003 Subaru WRX GDA/GGA
  • 2004 Subaru STI GDB
  • 2004 Subaru WRX GDA/GGA
  • 2005 Subaru STI GDB
  • 2005 Subaru WRX GDA/GGA
  • 2006 Subaru STI GDB
  • 2006 Subaru WRX GDA/GGA
  • 2007 Subaru STI GDB
  • 2007 Subaru WRX GDA/GGA
  • 2008 Subaru STI GRF
  • 2008 Subaru WRX GEE/GHE
  • 2009 Subaru STI GRF
  • 2009 Subaru WRX GEE/GHE
  • 2010 Subaru STI GRF
  • 2010 Subaru WRX GEE/GHE
  • 2011 Subaru STI GVF/GRF
  • 2011 Subaru WRX GVE/GRE
  • 2012 Subaru STI GVF/GRF
  • 2012 Subaru WRX GVE/GRE
  • 2013 Subaru STI GVF/GRF
  • 2013 Subaru WRX GVE/GRE
  • 2014 Subaru STI GVF/GRF
  • 2014 Subaru WRX GVE/GRE
  • 2015 Subaru STI VAB

 

  • We offer Local Delivery and Pickup
  • In stock, ready to ship
  • Inventory on the way
Tax included. Shipping calculated at checkout.

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there's not a better stud setup on the market today.

For openers, ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.

Following heat-treat, 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 (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.

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 - and one that compensates for head gasket compression when the cylinder heads are installed. This helps prevent blown head gaskets, and assures optimum engine sealing!

Premium quality heat-treated 8740 chrome moly steel head stud kits are available for most every domestic and import applications. You won't find a better quality stud on the market from any other source. Look for ARP stamped on each stud as your assurance of quality.

Vehicle Fitment is provided as a guide only to narrow down results. Please check listing for any additional information (measurements, specifications, additional notes) which may affect compatibility or ask for assistance.
  • 1994 Subaru STI GC8
  • 1994 Subaru WRX GC8/GF8
  • 1995 Subaru STI GC8
  • 1995 Subaru WRX GC8/GF8
  • 1996 Subaru STI GC8
  • 1996 Subaru WRX GC8/GF8
  • 1997 Subaru STI GC8
  • 1997 Subaru WRX GC8/GF8
  • 1998 Subaru STI GC8
  • 1998 Subaru WRX GC8/GF8
  • 1999 Subaru STI GC8
  • 1999 Subaru WRX GC8/GF8
  • 2000 Subaru STI GC8
  • 2000 Subaru WRX GC8/GF8
  • 2001 Subaru STI GDB
  • 2001 Subaru WRX GDA/GGA
  • 2002 Subaru STI GDB
  • 2002 Subaru WRX GDA/GGA
  • 2003 Subaru STI GDB
  • 2003 Subaru WRX GDA/GGA
  • 2004 Subaru STI GDB
  • 2004 Subaru WRX GDA/GGA
  • 2005 Subaru STI GDB
  • 2005 Subaru WRX GDA/GGA
  • 2006 Subaru STI GDB
  • 2006 Subaru WRX GDA/GGA
  • 2007 Subaru STI GDB
  • 2007 Subaru WRX GDA/GGA
  • 2008 Subaru STI GRF
  • 2008 Subaru WRX GEE/GHE
  • 2009 Subaru STI GRF
  • 2009 Subaru WRX GEE/GHE
  • 2010 Subaru STI GRF
  • 2010 Subaru WRX GEE/GHE
  • 2011 Subaru STI GVF/GRF
  • 2011 Subaru WRX GVE/GRE
  • 2012 Subaru STI GVF/GRF
  • 2012 Subaru WRX GVE/GRE
  • 2013 Subaru STI GVF/GRF
  • 2013 Subaru WRX GVE/GRE
  • 2014 Subaru STI GVF/GRF
  • 2014 Subaru WRX GVE/GRE
  • 2015 Subaru STI VAB

 

Shipping and Delivery We deliver products Australia wide using Couriers Please and Australia Post at a very competitive flat rate of $14.99* per order. *Please note, before we ship your products we reserve the right to contact you if the shipping costs for your specific order to your specific location is excessive. You will then be able to either cancel your order or accept an increased shipping fee. Due to new costs being introduced by couriers, we do not redeliver if there is a futile delivery attempt at your address. Your package will be held at your local depot available for pickup. Your package can be redelivered but it will be charged at a cost of $15/re-delivery and there is a 24 hour turnaround time for re-deliveries to be actioned by couriers. We always recommend that you put your business address as your delivery address to ensure successful delivery. Alternatively you can select ATL (Authority to Leave) in the checkout and your package will be left at your front door. Authority to leave - what does this mean? Our deliveries are tracked and require a signature on delivery. You can choose what happens if no one is at the shipping address when the courier attempts to deliver your order. If you choose 'yes' for 'Authority to leave' the courier will put the package in a safe place out of the weather according to your instructions. If you choose 'no' for 'Authority to leave' then the courier will put a card in your post box indicating which local post office (parcels shipped via Couriers Please or Australia Post only) or depot you can collect the package from. You will need to provide identification to collect from the post office/depot. Authority to leave terms & conditions By ticking the box or selecting 'yes' at the checkout page on the website, Sydney Performance Parts's agent will leave your parcel at your premises in accordance with your instructions. Please note that the driver does not require a signature often he/she will not try to obtain one so parcels may be delivered without knocking/ringing. You agree that the parcel is deemed received when left at your premises. Sydney Performance Parts, and contractors associated with the delivery, do not accept responsibility for any loss or damage which results from this Authority to Leave delivery method. You agree to release ‘Sydney Performance Parts and Tyres’ from and against any and all claims, demands, liabilities, losses, costs and expenses, including financial and other consequential losses, made, suffered or incurred by you or any other person or entity as a result of this Authority to Leave. If you do not give ‘Sydney Performance Parts and Tyres’ Authority to Leave, you will have to be at your premises in order for the delivery to occur. In stock orders are dispatched same-day if ordered before 2:00pm otherwise following business day if after 2:00pm. Out of stock orders shipping will range between 1-7 days based on the origin of the product. Any orders longer than 7 days will be discussed with you either by phone/email. Domestic shipping times are estimated at between 1-5 business days depending on your location within Australia. Use the tracking information supplied by Sydney Performance Parts and Tyres for accurate ETA's. Shipping destinations Couriers Please and Australia Post ships goods Australia wide and we use Australia Post to ship internationally. If your delivery address is outside of Australia, you may have to pay import duties and taxes, which are levied once the shipment reaches your country. All international shipments may be subject to cross-border inspections by customs authorities while customs policies vary widely country to country. You must meet any additional charges for customs clearance and we recommend that you contact your local customs office for further information. Shipping timing Our new state of the art website is also our stock control system. This means that the stock is instantly updated as sales are made. You can be sure that if its in stock online, we will ship your order immediately. We ensure that all products in stock are posted within 1 working day of receipt of an order. An automated email will be sent to your email confirming shipping and tracking information once the order has shipped. Any orders including a back-ordered product will ship out in full once all products are in stock. To arrange a split delivery please contact us. To check ETA of back-ordered products you can log into your account on our website.

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