SKU: 202-4305 | UPC: 672036040413
ARP Nissan VR38 CA625 Head Stud Kit 2009-2023 GT-R
ARP Nissan VR38 CA625 Head Stud Kit replaces factory head bolts on 2009-2023 Nissan GT-R models equipped with the VR38DETT 3.8L V6 twin-turbo engine. This complete kit secures the cylinder heads with extreme clamping force to handle high boost pressures in tuned and racing applications. Engine builders rely on it for reliable sealing during aggressive power builds.
Key Features
- CA625+ Alloy Steel: Forged from proprietary ARP material with 260,000 psi tensile strength for repeated high-stress cycles without fatigue.
- Rolled Threads: Increases thread strength by 130% over cut threads to resist stripping and maintain torque under boost.
- 12-Point Nuts: Zinc-plated steel nuts allow precise wrenching and higher torque values without rounding.
- Hardened Parallel Washers: Included washers distribute load evenly across the head gasket for uniform clamping.
- Complete Kit: 20 studs (10 per head), 20 washers, 20 nuts cover both cylinder heads fully.
Product Notes
- Torque to ARP specifications using ARP Ultra-Torque lubricant for accurate results.
- Inspect and clean block threads before installation to ensure proper seating.
- Ships in ARP branded protective packaging to prevent damage.
Installation Notes
- Professional installation recommended.
- Run engine break-in oil after install and re-torque studs after 100 miles or first heat cycle.
- Compatible with OEM head gaskets and ARP head gasket kits.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2010 | Nissan | GT-R | Base |
| 2009-2014 | Nissan | GT-R | Premium |
| 2012-2014 | Nissan | GT-R | Black Edition |
| 2014 | Nissan | GT-R | Track Edition |
| 2015-2016 | Nissan | GT-R | Premium |
| 2017-2023 | Nissan | GT-R | All Submodels |
Why Choose ARP?
- ARP fasteners power wins in NHRA, NASCAR, and Formula Drift racing.
- CNC machined in the USA with exacting tolerances for every application.
- Proven durability in 2,000+ horsepower GT-R builds worldwide.
Frequently Asked Questions
- Q: Will this kit fit 2017+ Nissan GT-R models?
A: Yes, ARP 202-4305 fits all 2009-2023 R35 Nissan GT-R with VR38DETT engines including NISMO variants. - Q: What material are the studs made from?
A: ARP CA625+ is a premium chromoly alloy steel heat-treated for 260,000 psi tensile and 220,000 psi yield strength. - Q: What is the warranty on this head stud kit?
A: ARP provides a lifetime warranty against manufacturing defects when installed and maintained per instructions.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Protective ARP box 12 x 8 x 2.5 inches
- Weight: 4.95 lbs
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