SKU: 300-8334 | UPC: 672036012366
ARP 1/2″-20 12 Point Nut Kit (Pack of 10) for GM LS SBC Ford Engines
This ARP nut kit contains 10 precision 1/2″-20 12-point nuts designed for high-performance engine fasteners. It fits ARP stud kits on GM LS series Chevy Small Block and Ford V8 engines used in cars trucks and race vehicles. These nuts maintain secure clamp load under high heat and vibration for dependable engine operation.
Key Features
- 8740 Chromoly Steel: Heat treated to 200,000 psi tensile strength to handle extreme cylinder pressures
- 12-Point Design: Delivers secure wrench grip to avoid slipping or rounding during installation
- Precision Threads: Ensures smooth engagement and repeatable torque for consistent performance
- Black Oxide Finish: Resists rust and seizing in fuel oil and moisture exposure
- Matched 10-Pack: Exact quantity needed for head main or rod stud kits in most V8 builds
Product Notes
- Inspect studs for wear before installing new nuts
- Re-check torque after first 100 miles or heat cycles
- Compact lightweight kit weighs 0.25 lbs net for easy handling
Installation Notes
- Professional installation recommended.
- Apply ARP Ultra-Torque lubricant to threads and under nut faces
- Torque per ARP specs for your stud kit usually 65-80 ft-lbs verify application
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-2023 | GM/Chevrolet | LS Series | LS1 LS2 LS3 LS7 V8 |
| 1955-2002 | Chevrolet | Small Block | 262 283 327 350 400 ci |
| 1962-1995 | Ford | Small Block | 260 289 302 351W ci |
| 1967-2003 | Dodge/Plymouth | LA Series | 273 318 340 360 ci |
| 1965-1997 | Ford | FE Big Block | 352 390 427 428 ci |
Why Choose ARP?
- Fasteners proven in NHRA Top Fuel and NASCAR engines
- USA-made with aerospace-grade materials and processes
- Engineered for 10x stock fastener strength in competition
Frequently Asked Questions
- Q: Do these nuts fit ARP main or head stud kits?
A: Yes direct fit for 1/2″-20 studs in GM LS SBC Ford and Mopar ARP kits - Q: What material and strength rating?
A: Forged 8740 chromoly steel heat treated to 200,000 psi minimum tensile strength - Q: What torque specs and lube to use?
A: Follow ARP kit instructions with Ultra-Torque lube typical range 65-85 ft-lbs
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Secure plastic tray in 4 x 3 x 1 inch box
- Weight: 0.25 lbs
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