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SKU: 250-4206 | UPC: 672036044091
ARP Head Stud Kit for 2003-2007 Ford 6.0L Power Stroke - Inner Row M8 Head Bolts
ARP 250-4206 head stud kit replaces the inner row M8 OEM torque-to-yield head bolts on 2003-2007 Ford Super Duty trucks and Excursions with 6.0L Power Stroke diesel engines. These high-strength studs provide secure clamping force to prevent head gasket failures during stock or modified operation with increased boost and power. Engineered for repeated use unlike single-use factory bolts this kit ensures engine integrity in demanding diesel applications.
Key Features
- 8740 Chrome Moly Construction: Forged steel with 200000 psi tensile strength handles extreme cylinder pressures from tuning and turbo upgrades
- Black Oxide Finish: Protects against corrosion and galling for durability in harsh engine environments
- Precision Machined M8x1.25 Threads: Matches factory specs for direct replacement with accurate torque application
- Includes Studs Washers and Nuts: Complete kit with hardened parallel ground washers and 12-point nuts for even load distribution
- Made in USA: ARP quality standards from domestic manufacturing ensure consistent performance
Product Notes
- Inner row only requires separate ARP 250-4205 kit for outer row M10 bolts on 6.0L heads
- Pair with ARP head gasket and MLS gaskets for boosted builds over 40 psi
- Kit weighs 4.1 lbs ships in 12 x 8 x 3 inch box
Installation Notes
- Professional installation recommended.
- Use ARP Ultra-Torque assembly lubricant on threads and under nut faces for precise torque values
- Torque in sequence to ARP specs 70 ft-lbs + 90 degrees compatible with stock or ported heads
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2007 | Ford | F-250 Super Duty | 6.0L V8 Diesel |
| 2003-2007 | Ford | F-350 Super Duty | 6.0L V8 Diesel |
| 2003-2007 | Ford | F-450 Super Duty | 6.0L V8 Diesel |
| 2004-2007 | Ford | F-550 Super Duty | 6.0L V8 Diesel |
| 2003-2005 | Ford | Excursion | 6.0L V8 Diesel |
Why Choose ARP?
- Decades of leadership in high-performance fasteners for diesel racing
- Strength tested beyond OEM limits for modified engines
- Precision engineering prevents stretching or failure under load
Frequently Asked Questions
-
Q: Will this kit fit all 2003-2007 Ford 6.0L Power Stroke engines?
A: Yes it directly replaces inner row M8 factory bolts on F-Series Super Duty and Excursion 6.0L diesel models -
Q: What is the material and strength rating?
A: Forged 8740 chromoly steel with 200000 psi tensile strength and black oxide finish for corrosion resistance -
Q: What warranty applies and are ARP studs reusable?
A: Limited lifetime warranty against failure studs are fully reusable after disassembly unlike OEM TTY bolts
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure foam-packed box 12 x 8 x 3 inches
- Weight: 4.1 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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