ARP Cylinder Head Stud Kit Pro Series GT/Cobra 1996-2004/Mach 1 2003-2004/GT500 2007-2010

MSRP $828.39
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ARP Pro Series Cylinder Head Stud Kit for 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 and 2004 GT and Cobra, 2003-2004 Mach 1 and 2007, 2008, 2009 and 2010 GT500 Mustangs.

This Pro Series Cylinder Head Stud Kit from ARP is designed for your 2V or 4V 4.6L engine. The ARP2000 Pro Series cylinder head studs are proudly made in the USA and cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining. This ARP2000 Pro Series kit comes complete with hex head nuts and hardened parallel washers for an even load distribution and accurate torque readings.

ARP's 256-4201 Pro Series Cylinder Head Stud Kit Specifications:
Fastener Style: Stud
Undercut Stud: No
Head Style: 12-Point
Fastener Material: ARP2000
Fastener Finish: Black oxide
Washers Included: Yes
Fastener Yield Strength: 200,000 psi

- 1996-2004 Mustang GT
- 1996-2004 Cobra
- 2003-2004 Mach 1
- 2007-2010 Shelby GT500

Tech Tip: ARP recommends using the ARP Ultra-Torque Fastener Assembly Lubricant (CJ's Part # 1009910) as opposed to motor oil or other low quality lubricants. This is due to higher friction on the studs as well as inconsistencies in the clamping force of the fasteners when insufficient lubricants are used.

Please Note: While following the manufacturer's recommended torque sequence, tighten the nuts to the ARP recommended torque specifications using ARP Ultra-Torque Fastener Assembly Lubricant.

Your Mustang is held together by a myriad of nuts, bolts and screws. What happens if that hardware fails, or you need to upgrade it to handle additional performance? With the hardware from ARP, you're getting the best products on the market, and those trusted by Formula 1, IndyCar, NHRA and NASCAR.

Order ARP's 256-4201 Pro Series Cylinder Head Stud Kit for your 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 or 2004 GT or Cobra, 2003-2004 Mach 1 or 2007, 2008, 2009 or 2010 GT500 Mustang from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Installation Difficulty


Novice skill is required for this installation.

Installation Videos

Video Transcript

We’re here with an ARP 2000 Head stud kit, fitting you 1996 through 2010 Mustang. If you happen to like big power with your mod motor, getting rid of the factory fatigued head bolts, going to the set of head studs like these ARP 2000's is a must upgrade. This is a 12 point kit made of cold-forged steel for extra strength and a direct replacement for your factory head bolts on your 1996 through 2004 GT, 1996 through 2004 Cobra, 2003 through 2004 Mach I, or your 2007 through 2010 GT-500. This is a 12 point kit made right here in the USA.

Vehicle Fitment

This product will fit the following Mustang years:

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