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Halloween Special Arp Custom 625 Head Stud Kit For Gen Iii Hemi 5.7/6.1/6.2/6.4l Holiday Edition [dXqgA1ZJ]

$44.99 $143.99 -69%

ARP Custom 625 Head Stud Kit: Ultimate Strength for Gen III Hemi Introducing the ARP Custom 625 Head Stud Kit, the ultimate choice for enhancing the performance and longevity of your Gen III Hemi engine. This kit is specifically designed for 5.7/6.1/

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ARP Custom 625 Head Stud Kit: Ultimate Strength for Gen III Hemi

Introducing the ARP Custom 625 Head Stud Kit, the ultimate choice for enhancing the performance and longevity of your Gen III Hemi engine. This kit is specifically designed for 5.7/6.1/6.2/6.4L engines, offering a direct screw-in replacement for the OEM head bolts. With its advanced Custom Age 625+ super-alloy, this kit ensures superior fatigue cycle life, tensile strength, and toughness, providing complete resistance to atmospheric corrosion and oxidation. ARP's innovative manufacturing and testing processes make it the first to offer such a high-quality fastener solution.

Superior Engineering and Quality

The ARP Custom 625 Head Stud Kit is crafted with precision in ARP's Santa Paula, CA plant. Each stud undergoes a rigorous heat-treatment process, followed by rolling the threads to optimize fatigue strength. The studs are then center-less ground to ensure perfect concentricity, minimizing the risk of engine damage. The ends of the studs are broached, making installation effortless and enabling the cylinder head to be removed in tight quarters without modification to your cylinder head or block. This direct replacement ensures a hassle-free upgrade for your engine.

Installation and Performance

The ARP Custom 625 Head Stud Kit comes with comprehensive installation instructions, including torque specifications for different bolt sizes. For 8mm bolts, the recommended torque is 25 ft-lbs, while for 12mm bolts, it is 50, 85, and then 125 ft-lbs in a standard torque sequence. A key note is to let each bolt sit before re-torquing, ensuring a secure fit. Always use assembly lube during installation on the stud and included hardware for optimal performance. With this kit, you can expect exceptional strength and durability, making it the ideal choice for both performance enthusiasts and professional mechanics.

What Our Customers Say

December 31, 2025

Absolutely no complaints!

A purchase I feel very astute for making.

- Pansy K..

December 31, 2025

Absolutely no complaints!

It’s a very fine and a very, very, very clever tool.

- Caswallon R..

December 31, 2025

Absolutely no complaints!

This is a really good and a very, very, very, very, very, very useful gadget.

- Lludd A..

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