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SKU: 256-4301 | UPC: 672036042165
ARP 2011-2017 Ford Coyote 5.0L V8 Head Stud Kit
ARP 256-4301 head stud kit upgrades 2011-2017 Ford Mustang GT and Boss 302 with Coyote 5.0L V8 engines. These studs provide even clamp load under extreme boost and RPM for race-ready cylinder head retention. Built for long-term engine reliability in street and track use.
Key Features
- Genuine ARP Fasteners: 8740 chromoly steel construction with 200,000 PSI tensile strength handles high cylinder pressures without fatigue
- Stud Design: Minimizes main block thread damage while ensuring accurate repeatable torque values across multiple services
- Precision-Rolled Threads: Increases thread engagement by 25 percent over cut threads for maximum holding power and resistance to loosening
- Matched Hardware: Includes 12-point nuts, hardened parallel washers, and lube for complete bolt-on assembly without custom sourcing
- Versatile Application: Proven in boosted naturally aspirated and high-RPM Coyote builds from 2011-2017 models
Product Notes
- Requires ARP Ultra-Torque fastener lubricant on threads and under nut faces for correct preload
- Torque to ARP specifications after full engine warm-up and recheck after 100 miles
- Ships in protective packaging to prevent thread damage
Installation Notes
- Professional installation recommended.
- Chase cylinder head bolt holes with ARP thread chaser tool before install
- Compatible with OEM and aftermarket cylinder heads using 14mm x 2.1 threads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2017 | Ford | Mustang | GT 5.0L Coyote |
| 2013-2014 | Ford | Mustang | Boss 302 5.0L Coyote |
| 2011-2014 | Ford | F-150 | 5.0L Coyote |
| 2015-2017 | Ford | Mustang | GT Premium 5.0L Coyote |
Why Choose ARP?
- ARP fasteners power NHRA Top Fuel and Pro Stock engines worldwide
- Every stud undergoes rigorous heat treatment and thread rolling for consistent performance
- Backed by decades of engineering data from real-world racing applications
Frequently Asked Questions
-
Q: Does this kit fit 2018+ Gen 3 Coyote engines?
A: No this 256-4301 kit is designed for 2011-2017 Gen 1 and Gen 2 Coyote 5.0L use ARP 256-4701 for newer models -
Q: What material are the studs made from?
A: High-tensile 8740 chromoly steel with custom heat treatment rated at 200,000 PSI minimum tensile strength -
Q: What is the ARP warranty policy?
A: Lifetime warranty against manufacturing defects when installed and torqued per ARP instructions
Shipping & Handling
- Method: Free ground shipping on orders over $149
- Availability: In stock - ships same or next business day
- Packaging: Secure retail box measuring 12 x 8 x 3 inches
- Weight: 4.65 lbs
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