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ARP 206-4206 Cylinder Head Stud Kit Chrome Moly - 8740 12-Point

Part of: ARP Cylinder Head Stud Kit Chrome Moly

Other options in this family: ARP 230-4201 ARP 235-4702 ARP 154-4203 ARP 206-4205 ARP 204-4206

Manufacturer

Picture for manufacturer ARP

Part Number

206-4206
16 reviews
Sale Price

$107.67

1 left at this price

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Usually delivered within 2 days

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Product Details

The ARP 206-4206 is a professional-grade cylinder head stud kit featuring 11 pieces of premium 8740 chrome moly steel fasteners with 12-point heads. Designed for high-performance and competition applications, this kit delivers superior clamping force and reliability for demanding engine builds.

Premium 8740 Alloy Construction:

Each stud is manufactured from aircraft-quality 8740 chrome moly steel and heat-treated to 200,000 psi. ARP uses a vertical rack heat-treatment process that ensures complete and uniform heat penetration throughout each fastener, resulting in consistent strength and performance far superior to batch-treated alternatives.

Precision Manufacturing Process:

  • Centerless ground after heat-treat for exceptional concentricity and straightness
  • Thread rolled after heat-treatment for 10x better fatigue strength compared to pre-hardened threading
  • Precision tolerances ensure cylinder heads and gaskets align perfectly during installation
  • 12-point head design with wide-area flange eliminates need for valve train removal during retorquing

Engineering Advantages:

This kit features specially undercut short studs that equalize stretch between fasteners of different lengths, providing more consistent clamping force across the entire head surface. This design compensates for head gasket compression and helps prevent blown gaskets while ensuring optimal engine sealing. The stud design allows for installation in a relaxed state and stretches only on the vertical axis when torqued, providing more accurate and consistent loading compared to traditional head bolts.

Kit Includes:

  • 11 precision-manufactured head studs
  • Hardened parallel-ground washers for even load distribution and accurate torque readings
  • 12-point nuts for secure fastening

ARP Pro Series head studs are the choice of professional engine builders across all forms of motorsports. Each component is cold-forged to ensure molecular integrity and meets ARP's zero-defect, zero-failure quality standard. Every stud is marked with the ARP stamp as your assurance of quality and authenticity.

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

8740 chromemoly

Fastener Style

Stud

Head Style

12-point

Notes

Fits models with 11 studs only, special length to fit milled cylinder head.

Quantity

Sold as a kit.

Washers Included

Yes

Well first good morning and second we look everywhere to find the part that I needed for my car. Am grateful that autoplicity was more than helpful. It's my first time dealing with autoplicity and I am very pleased. I will tell my friends about u as well. Thanks again have a wonderful day

All good but rcvd wrong item. Working with them for correcting the problem

Test Review.

The only problem it was not an exact fit . It was designed for the older type awnings.

Great!

no issues

Easy, and they really care about their costumers.

this is my new home... very cool site, beat summit and jegs by $20 to $30

Extremely Happy! Best price on the web, easy order tracking, if only all online orders from other sources were this easy. I ordered a component from another online retailer who showed parts "in stock" only to see my status as "sent to warehouse" and it was weeks. When Autoplicity shows "in stock" it really was and delivered right away.

The search function wouldn't find the Pertronix part number 1847A with only the 1847 entered in the search field. I had to enter the whole part number. Less is more in a search, so if you fixed that, more people might find the part they want and order it.

It took exactly a week for the part to be shipped because the part came directly from the supplier. But the price was the lowest around.

I just received my order 7260 very quickly and it was as I had ordered............very easy to order and would do business with them again and I also will recommend them to others.

Better prices and even better service. Will do business with again.

Perfect item, fast shipment, great communication, and the best price.

Great communication, lowest price I could find anywhere, and quick shipping with a tracking number. What more could you ask for. 2nd time dealing with them and still impressed! order# 6935

They had exactly what I needed and the cheapest price i found anywhere.

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