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SKU: 202-4208 | UPC: 672036048389
ARP Cylinder Head Stud Kit for Nissan 2.6L (RB26DETT) Skyline GT-R 1989-2002 Custom Age 625+
The ARP 202-4208 Cylinder Head Stud Kit equips Nissan Skyline GT-R models with the 2.6L RB26DETT inline-6 engine from 1989 to 2002. These studs lock down cylinder heads with consistent clamping force to handle extreme cylinder pressures in tuned and racing setups. Precision manufacturing ensures gaskets seat perfectly for leak-free performance.
Key Features
- Custom Age 625+ Material: Inconel-based alloy provides corrosion resistance and strength for high-heat high-boost applications beyond standard steels.
- Post-Heat-Treat Thread Rolling: Boosts fatigue strength 2000% over pre-heat-treat threading for longer life under repeated stress cycles.
- Centerless Grinding: Creates concentric studs so cylinder heads and gaskets align without binding during assembly.
- Precise Heat Treatment: Vertically racked process achieves uniform 260,000+ psi tensile strength throughout each stud.
- Undercut Design: Equalizes stretch on shorter studs for even clamping that accounts for head gasket compression.
Product Notes
- Torque to ARP specifications using ARP Ultra-Torque assembly lube for accurate preload.
- Inspect threads and clean with ARP thread chaser before installation.
- Packaged in protective ARP box to prevent damage during transit.
Installation Notes
- Professional installation recommended.
- Remove factory bolts and clean blind holes thoroughly before installing studs.
- Compatible with multi-layer steel head gaskets and OEM or aftermarket cylinder heads.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1994 | Nissan | Skyline | R32 GT-R (RB26DETT) |
| 1995-1998 | Nissan | Skyline | R33 GT-R (RB26DETT) |
| 1999-2002 | Nissan | Skyline | R34 GT-R (RB26DETT) |
Why Choose ARP?
- Choice of professional engine builders in drag racing and circuit competition.
- USA-made with alloys exceeding aircraft-grade standards.
- Exact tolerances ensure flawless head installation and sealing.
Frequently Asked Questions
-
Q: Will this kit fit all RB26DETT engines in Skyline GT-R models?
A: Yes it directly replaces OEM studs in 1989-2002 Nissan Skyline GT-R R32 R33 and R34 with stock or ported RB26DETT cylinder heads. -
Q: What makes Custom Age 625+ different from ARP2000?
A: Custom Age 625+ is an Inconel alloy with higher temperature and corrosion resistance ideal for turbocharged RB26 builds pushing over 1000hp. -
Q: What is the warranty and torque procedure?
A: ARP offers a lifetime warranty against manufacturer defects. Follow included instructions for torque in stages with moly or Ultra-Torque lube.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: ARP protective box 10in x 6in x 2in
- Weight: 2.6 lbs
ARP
ARP (Automotive Racing Products) is the world’s premier manufacturer of high-strength engine and driveline fasteners—head studs and bolts, main studs, rod bolts, and more—engineered and manufactured in-house from start to finish for race-proven reliability. With vertically integrated processes that include cold heading, machining, heat-treating, thread rolling after heat treat, and rigorous QA, ARP maintains aerospace-level certifications (ISO 9001 and AS9100) and validates every part for repeatable clamp load and fatigue resistance. Signature alloys such as 8740 chromoly, ARP2000, L19, and Custom Age 625+ deliver ultimate tensile strengths up to the super-alloy range, while ARP Ultra-Torque fastener assembly lubricant helps achieve consistent pre-load during installation. From street performance builds to professional motorsport programs, ARP fasteners provide precise fitment, superior metallurgy, and the durability needed to keep engines together at elevated cylinder pressures and...
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