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CONTACT SALES: +61 2 5500 7523
CONTACT SALES: +61 2 5500 7523
ARP 2000 Series Head Stud Kit to suit Nissan RB20 / RB25 / RB30 Twin Cam / CA18 (AR202-4309)

ARP 2000 Series Head Stud Kit to suit Nissan RB20 / RB25 / RB30 Twin Cam / CA18 (AR202-4309)

by ARP Fasteners
SKU AR202-4309
€299,49 - €299,49
€299,49
€299,49 - €299,49
€299,49

Part number: AR202-4309

ARP 2000 Series 11mm Head Stud Kit to suit Nissan RB20DET, RB25DET, RB30ET With Twin Cam Head & CA18DET.

Alternate part numbers:

  • AR2024309
  • 202-4309
  • 2024309

    Q. Which ARP head studs should I use? 625 or 2000's?

    A. In our opinion and using logic, the performance of a bolt is strictly limited to its stretch. The stretch is what gives the benefit of tension of a cylinder head.

    Now the only thing that separates a ARP 2000 and a 625 is it ability to stretch before yield, the rate of stretch remains constant so in essence you can pull a 625 further before it yields out

    Now because the limiting factor on an RB is the cylinder head tension as it crushes the head with any more than about 110 foot pounds. Most blocks are limited to 105 foot pounds unless it’s an RB 30 RD 28 or an in one version of an RB 26 in which case 110 foot pound also applies.

    You’re not reaping the benefits of a better quality bolt as you can only pull it to the tension that the block and combination will allow.

    So for arguments sake at 105 foot pound. There is simply no benefit to either type of bolt over the other. You’re not pulling either of them anywhere near their yield.

    ARP Recommend pulling a bolt to 75% of a yield in which case an ARP 2000 is around 110 foot pound in an M12 bolt which is fine but the 625 pulls 140 foot pound at 75% of yield and because you’re not tensioning the bolt to 140 foot pound both bolts perform exactly the same

    In this application spending the extra thousand dollars on the 625 bolts is a complete and utter waste of money and there is zero benefit, not even a little bit, not even at all.


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  • Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
  • PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only
Warranty/Refund Policy

Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.

  • Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
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  • Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.

Warranty Policy

  • Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
  • Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
  • Warranty does NOT cover costs of shipping to and from in any circumstance.
  • All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
  • Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy.
  • Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
  • Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
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