Why shop with us
Brand: ARP Inc.
Hex Head ARP (254-4405) Stud Kit
ARP Hex Head Stud Kit is designed for high-performance applications.
Currently out of stock
No hidden fees — taxes included in the price & Free Shipping.
We accept major cards and digital wallets. Additional installment plans, when available, are offered by Shopify at checkout based on order eligibility.
Hex Head ARP (254-4405) Stud Kit
For good reason, virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants.
Simply stated, there is not a better stud setup on the market today.
For openers, a premium grade 8740 alloy rated far superior to aircraft quality is used by ARP.
Each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi.
Complete heat penetration is ensured by this procedure, and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.
Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible.
About ten very slight cuts are involved in this procedure and result in an exceptionally straight part.
It is important to note that lesser quality studs are not even centerless ground; the material is thread rolled in bar stock form, mostly before heat-treat, when the material is easier to machine.
Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned, something that won't happen with inferior quality head studs.
High Performance 8740 Series Undercut Studs Hex Head Kit.
Key Features
Specifications
- Length
- 8.5 lb
- Width
- 4.0 lb
- Height
- 2.5 lb
- Weight
- 4.17 lb
- ASIN
- B00IKA7794
- UPC
- 672036011307
- Ships From
- United States
- Brand
- ARP Inc.
Frequently Asked Questions
About Hex Head ARP (254-4405) Stud Kit
01 What is the part number for the ARP Hex Head Stud Kit?
The part number is 254-4405.
02 What material is used for the ARP head studs?
ARP uses a premium grade 8740 alloy.
03 What is the heat treatment rating for the ARP studs?
The studs are heat-treated to 200,000 psi.
04 What is the ASIN for this product?
The ASIN for this product is B00IKA7794.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 672036011307.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Aug 30.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

