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SKU: 102-5402 | UPC: 672036043780
ARP Nissan 3.0L VG30DE/DETT DOHC V6 Main Stud Kit 1989-1996 300ZX 1992-1997 J30
ARP main stud kit strengthens bottom end clamping in Nissan 3.0L VG30DE and VG30DETT DOHC V6 engines powering 1989-1996 Nissan 300ZX models and 1992-1997 Infiniti J30. Replaces weak factory bolts to handle increased cylinder pressures from turbocharging boosted power or high-revving naturally aspirated setups. Ensures block and main cap stability under extreme loads for reliable engine performance.
Key Features
- ARP2000 Alloy Construction: Forged steel composition provides 220,000 psi tensile strength to resist fatigue and stretching in high-horsepower applications
- Precise Thread Design: Rolled threads deliver accurate fit into Nissan VG30 blocks preventing cross-threading and ensuring even load distribution
- Complete Kit Contents: Includes 10 main studs 12-point nuts and hardened parallel washers for full main cap girdle assembly
- Heat Treatment Process: Double-tempered for durability under 1000+ hp builds common in 300ZX turbo swaps and race motors
- Reusable Design: Withstands multiple engine teardowns without replacement unlike torque-to-yield OEM bolts
Product Notes
- Torque studs to ARP specifications using moly or Ultra-Torque lubricant for accurate preload
- Inspect main caps and block registers before installation to avoid distortion
- Packed in protective plastic tray inside sturdy cardboard box
Installation Notes
- Professional installation recommended.
- Chase main bore threads with tap kit and clean with brake cleaner prior to assembly
- Compatible with stock main girdle ARP aftermarket girdles and billet caps
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1989-1996 | Nissan | 300ZX | VG30DE |
| 1990-1996 | Nissan | 300ZX | VG30DETT |
| 1992-1997 | Infiniti | J30 | VG30DE |
Why Choose ARP?
- Backed by decades of motorsport use in drag racing and road course applications
- CNC-machined components meet aerospace tolerances for consistent performance
- Extensive dyno and track testing validates strength in real-world high-stress conditions
Frequently Asked Questions
-
Q: Will this kit fit twin-turbo 300ZX models?
A: Yes it fits all 1990-1996 Nissan 300ZX VG30DETT engines providing secure main fastening for stock or upgraded turbo setups -
Q: What material are the studs made from?
A: Premium ARP2000 proprietary alloy steel with superior fatigue resistance over 8740 chromoly used in many competitors -
Q: What is the warranty coverage?
A: Lifetime warranty against stud breakage when installed and torqued per ARP instructions excludes abuse or improper lubrication
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective tray in 6 x 5 x 2 inch box
- Weight: 1.95 lbs
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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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