ARP Ford Modular 4.6L 2&4 Valve 12 pt Head Stud Kit

This ARP performance fastener, stud, bolt, tool, or assembly is the Ford Modular 4.6L 2&4 Valve 12 pt Head Stud Kit for 1996-2007 Ford Mustang. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• ARP2000 Alloy Studs: Forged from high-tensile ARP2000 material with 220,000 psi tensile strength to resist stretch and fatigue.
• Complete Kit: Includes 20 studs M11 x 1.5 thread 7.900 in length 10 nuts 20 washers for both cylinder heads.
• 12-Point Nuts: Chrome-moly steel nuts with 12-point design for precise wrench fit and accurate torque application.
• Hardened Steel Washers: Parallel-ground washers distribute load evenly and prevent galling on aluminum heads.
• Studs forged from ARP2000 alloy with 220,000 psi tensile strength and 174,000 psi yield strength.
• Black Oxide Finish: Provides corrosion resistance and reduces friction during assembly.

Fitment

Specifications

What’s Included

One new ARP head stud & bolt kit in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
• ARP 13 Ford Coyote 5.0L V8 Head Stud Kit
• ARP Ford Coyote 5.0L Head Stud Kit
• ARP Ford Modular 4.6L/5.4L 2V/4V ARP2000 Hex Head Stud Kit

Frequently Asked Questions

How do I confirm the Ford Modular 4.6L 2&4 Valve 12 pt Head Stud Kit fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 256-4201, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.