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ARP 250-4203 Head Stud Kit for 6.4L Ford Power Stroke Diesel

Manufacturer

ARP

<h3>The Gold Standard in Performance Fasteners</h3> <p>When racing enthusiast Gary Holzapfel recognized that fastener failure was causing many engine breakdowns in 1968, he founded Automotive Racing Products (ARP) to solve a critical problem in motorsports. Drawing on his aerospace fastener manufacturing experience, Holzapfel created a company that would revolutionize the performance fastener industry. Today, ARP stands as the world's premier manufacturer of high-strength bolts, studs, nuts, and specialized hardware for racing and high-performance applications.</p> <p>ARP controls all aspects of the manufacturing process in-house, with all operations closely monitored, enabling the company to maintain its reputation for zero-defect quality. Every fastener undergoes forging, heat treatment, thread rolling, and precision finishing at ARP's Southern California facilities, which span over 115,000 square feet. This vertically integrated approach ensures that each component meets exacting standards for strength, fatigue resistance, and reliability under extreme conditions.</p> <h3>Engineered for Championship Performance</h3> <p>ARP's customer roster reads like a who's who of professional motorsports. The product line ranges from quality high-performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications. The company's fasteners have secured victories in virtually every major racing championship worldwide, from Top Fuel dragsters to Formula One cars, proving their worth under the most demanding conditions imaginable.</p> <p>The brand's <a href="/48-arp-engine-cylinder-head-bolt-set-10306">engine cylinder head bolt sets</a> represent the cornerstone of ARP's catalog, offering engine builders the clamping force and reliability needed to prevent head gasket failure in high-boost and high-compression applications. These precision-engineered fasteners utilize proprietary materials and heat treatments that deliver up to ten times the fatigue strength of conventional bolts, making them essential for any serious performance build.</p> <p>For engine internals, ARP manufactures <a href="/48-arp-engine-connecting-rod-5276">connecting rods</a> designed to withstand extreme cylinder pressures and high RPM loads. Each rod is manufactured to aerospace standards with tight tolerances and superior material properties. Whether you're building a street performance engine or a full competition powerplant, ARP connecting rods provide the strength and consistency that professional engine builders demand.</p> <h3>Complete Fastener Solutions</h3> <p>Beyond engine components, ARP's product range extends throughout the entire vehicle. The company's <a href="/48-arp-wheel-lug-stud-7680">wheel lug studs</a> offer critical safety and performance benefits for racing and high-performance street applications, providing greater clamping force and durability than factory studs. ARP's product line contains thousands of part numbers and has expanded to include virtually every fastener found in an engine and driveline.</p> <p>Individual <a href="/48-arp-engine-cylinder-head-bolt-5308">engine cylinder head bolts</a> are also available for custom applications or specific replacement needs, manufactured to the same exacting standards as complete sets. This flexibility allows builders to source exactly what they need for specialized builds or repairs without compromising on quality.</p> <p>What sets ARP apart is not just the breadth of their catalog, but their willingness to develop custom solutions for unique applications. The company maintains complete R&D capabilities, including metallurgical research, product design, prototype machining, and extensive laboratory testing. This engineering expertise ensures that whether you're installing a simple head stud kit or building a record-setting race engine, ARP fasteners deliver the reliability and performance that professionals trust.</p>

Part Number

250-4203
05/31/2036 8:00 PM
Sale Price

$595.28

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The ARP 250-4203 Head Stud Kit is engineered specifically for 2008-2010 Ford 6.4L Power Stroke diesel engines, providing superior clamping force and head gasket sealing compared to factory head bolts. These premium studs are manufactured from ARP's proprietary 8740 chromoly steel and heat-treated to 200,000 psi tensile strength for exceptional durability under extreme cylinder pressures.

Key Features:

  • 8740 chromoly steel construction with 200,000 psi tensile strength
  • Precision CNC-machined threads rolled after heat treatment for superior fatigue resistance
  • Black oxide finish for corrosion protection
  • Allows engine to be removed without removing studs from block
  • Includes hardened parallel-ground washers and ARP Ultra-Torque assembly lubricant
  • Reusable design for multiple engine builds

ARP head studs are essential for modified Power Stroke engines running increased boost, performance tuning, or heavy towing applications. The stud design eliminates the inherent stretch and torsional load of conventional head bolts, ensuring consistent clamping force and preventing head gasket failure. Each kit includes detailed torque specifications and installation instructions.

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

ARP2000

Fastener Style

Stud

Head Style

12-point

Quantity

Sold as a kit.

Washers Included

Yes

Totally happy with my order. I'm amazed with the product.

Quick and easy!

⭐️⭐️⭐️⭐️⭐️⭐️

Easy to find the part and get it ordered. It arrive on time as promised.

Awesome

I'll be over all the service was nice to delivery was on time and a decent amount of time the product is what I ordered but I'll be a return the product is not actually what I need

The ordering process is easy and quick.

Easy to order, hopefully it's the right part, and it shows on time.

good customer service

I ordered a water pump from them and that Amazon was advertising as a Chrome pump. When I discovered it was not chrome, I asked to cancel the order which was prior to shipping notification. I was told by customer service it had already been sent and I would have to wait until the item was sent for a return to be processed. The return was sent back and all money was credited to my account as promised.

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