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*NEW* Promaxx 18mm Cylinder Heads & ARP Studs For 03-06 Ford 6.0L Powerstroke

Pricing: $2,784.00

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The ProMaxx Performance Cylinder Heads are high quality replacements for your 2003-2007 Ford 6.0L Powerstroke. Built with thicker castings in crack prone areas, these heads undergo extensive testing and quality control to ensure that you receive the best product possible.

ProMaxx performs the following tests and procedures: All fuel rails are drilled and checked, All heads are push rod clearanced, glow plugs and injectors are test fit, all recession depths are checked, all heads are pressure tested, all holes are tapped including glow plug threads and each head gets an in-house valve job.

Sold as a complete cylinder head pair with valves, valve seals, springs, retainers and locks, these new castings are sold without a core charge and come ready to install. Sold as a pair.


The ARP 250-4202 Head Studs are a must-have upgrade for your 03-07 Ford 6.0L Powerstroke. These extra heavy duty studs are rated at 220,000 psi tensile strength and provide the clamping force required to keep your 6.0L Powerstrokes cylinder heads from lifting due to higher combustion pressures.

Manufactured in ARPs Santa Paula, CA plant from proprietary ARP 2000 material, with threads rolled after heat-treating to provide optimum fatigue strength. They are centerless ground to assure perfect concentricity. Also included in each kit are heat-treated, chrome-moly steel 12-point nuts and parallel-ground washers, with a black oxide finish for extra durability.



  • New Casting
  • Sold as a PAIR
  • No Core Charge!
  • Improved Casting In "Problem Areas"
  • 18MM Dowel Application 
  • 220,000 PSI Tensile Strength
  • Replaces Factory Head Bolts
  • Black Oxide Finish



  • 2003-2006 Ford F-250/F-350/F-450/F-550 6.0L Powerstroke W/ 18MM Dowel Pins
  • 2003-2005 Ford Excursion 6.0L Powerstroke W/ 18MM Dowel Pins
  • 2003-2006 Ford E-250/E-350/E-450/E-550 6.0L Powerstroke W/ 18MM Dowel Pins



  • Vehicles with engines built BEFORE January 11th, 2006 will use this application. If you vehicles engine was built AFTER January 12th, 2006, you will require the 20MM application.
  • ARP is aware of forum postings providing incorrect torque values. Please follow the included installation instructions for proper torque specifications and tightening sequence.
  • In some instances this product may drop ship directly from the manufacturer. This could be an additional 2-4 business days.


  • (2)FOR850N_250-4202
  • (2)FOR850N_250-4202
  • ARP
  • New

Shipping Information

  • Item Requires Shipping
  • 20.0 lbs.
  • FREE Ground Shipping

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