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ARP 205-4002 Head Stud Kit Chrome Moly Steel - 8740

Part of: ARP Head Stud Kit Chrome Moly Steel

Other options in this family: ARP 204-4302 ARP 235-4314 ARP 235-4320 ARP 202-4306 ARP 154-4102

Manufacturer

Picture for manufacturer ARP

Part Number

205-4002
11 reviews
Sale Price

$125.98

Estimated ship date Tuesday, November 24

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Product Details

The ARP 205-4002 Head Stud Kit is engineered for high-performance and racing applications where engine reliability is critical. This professional-grade stud kit features premium 8740 chrome moly steel construction and is designed to provide superior clamping force and durability compared to standard head bolts.

Superior Material and Heat Treatment:

  • Manufactured from premium grade 8740 chrome moly alloy steel rated at 200,000 psi tensile strength
  • Each stud is vertically rack heat-treated to ensure complete and uniform heat penetration throughout the material
  • Threads are rolled after heat treatment, providing approximately 10 times better fatigue strength than pre-heat-treat threading
  • Centerless ground construction with multiple precision cuts ensures exceptional concentricity and straightness

Design and Installation Benefits:

  • Hex head design allows for precise torque application without twisting the fastener during installation
  • Studs provide more accurate and consistent torque loading compared to bolts, as they stretch only on the vertical axis
  • Precision tolerances ensure cylinder heads and gaskets align properly and glide smoothly into position
  • Select applications feature undercut short studs that equalize stretch for more consistent clamping force
  • Includes hardened, parallel-ground washers for even load distribution and accurate torque readings

Why Choose Studs Over Bolts:

Head studs offer significant advantages for performance applications. Unlike bolts, which twist during torquing and react to multiple forces simultaneously, studs are installed in a relaxed state and stretch uniformly when the nut is torqued. This results in more consistent clamping force, better head gasket sealing, and easier engine assembly—especially important for racing engines that require frequent servicing.

Each ARP stud is marked with the ARP stamp as assurance of quality. This kit represents the same fastener technology trusted by professional engine builders across all forms of motorsports competition.

My order #4383 was fulfilled quickly and shipped in a timely fashion. The price was super competative and the web site is user friendly. I will be back for more I'm sure! Shipping should be free for orders over a certain price, say $50?!?!

Great price and received item in a timely and in great condition. Will definitely shop here again!

Quick and easy to order. Hope it all arrives in Australia OK

Autoplicity made finding and ordering my parts simple and easy! Not only did they have the parts in stock and ready to ship, but they were also the cheapest BY FAR saving me nearly 30%!<br><br>The information that they had on the product pages was 100% accurate unlike other car part websites.<br><br>Autoplicity has made a customer for life!

Website is easy to navigate. Parts are easy to find. Checkout was very simple to use. Good overall service.

They beat everyones price on-line and in town and it only took ten days to get my tire delivered to my front door I will shop with Autoplicity again I have told all my friends about the low price already Thank You

Ordered a couple K&N oil filters for my bike and they were the cheapest by far. The order arrived quickly and exactly as promised. They kept me informed of the status all the way. i would definitely buy from them again! Ed

Your site looks professionally constructed and has an easy to understand interface.

The order number 15547 tailgate lock fit perfectly. The shipping was very fast, ordered on Tuesday, delivered on Saturday. Will order from again.

The web site could use some updating or either there is a Glitch somewhere. I had to call to check on my order but it was already being shipped. They were on he ball, I just believe they are having computer troubles. Autoplicity had the best price I could find On my Bully Dog. Thanks Again!!

Ordered a VP Racing fuel container and fill tube late Friday and it's already on the way. <br>Best price online and very quick service. Great transaction will definitely order from vendor again. <br>Thanks Autoplicity.

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