ARP Pro

Pro LSX/RHS Head Stud Kit

$615.50

SKU: 234-4319

In Stock
In Stock
Ships by Aug 29
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The ARP Pro Series head stud kit (part number 234-4319) is engineered for Gen III and Gen IV LS engines, specifically for LSX and RHS blocks. These Pro Series studs are cold-forged, ensuring superior molecular integrity, and are heat-treated before thread rolling and machining. Constructed from ARP2000 material, they offer a tensile strength of 220,000 psi, providing the necessary clamping load to withstand extreme conditions. Each kit comes complete with hardened parallel washers. These washers are crucial for distributing the load evenly across the cylinder head and ensuring accurate torque readings during installation. The ARP2000 alloy used in these studs is rated significantly higher than standard aircraft quality alloy steels, making them a robust choice for performance applications. ARP offers hundreds of head stud models, making these fasteners suitable for virtually any engine style. The 12-point nuts included in some kits further enhance ease of installation and reliability.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandARP Pro
Part Number234-4319
CategoryEngines and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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