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ARP 256-4201 Head Studs

Manufacturer

ARP

<p>Today, ARP&rsquo;s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.</p>

Picture for manufacturer ARP 760-1013 Gaskets & Seals

Part Number

256-4201
17 reviews
04/23/2034 3:28 PM
Sale Price

$451.50

In Stock (7)

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Usually delivered within 2 days

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Product Details

ARP 256-4201 Head Studs



FITS 4.6/5.0L 2&amp;4 VALVE ENGINES.

(Modular 4.6/5.0L 2 4-Valve 12pt) Built for the Ford Mustang... Obtaining the optimum cylinder head-to-block sealing is especially critical in small displacement engines employing high compression pistons or power adders like turbochargers, nitrous oxide and superchargers. That's why ARP head studs are popular among leading Sport Compact/Import racers.You should know that ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is precisely heat-treated to 200,000 psi. Following heattreat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's 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.ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat.You will also note that ARP offers specially undercut studs for several engines. This procedure (done only to the shorter studs) more equalizes the "stretch" of both studs, which makes for a more consistent clamping force one that compensates for head gasket compression when the head is installed. This helps prevent blown head gaskets, and assures optimum sealing!

  • Ford Mustang
  • Modular 4.6/5.0L 2 4-Valve 12pt

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

ARP 2000

Fastener Style

Stud

Head Style

12-point

Quantity

Sold as a kit.

Washers Included

Yes

Believe part is defective

Easy and fast...I hope the shipping service is just as good as the web site!!

N/A

Didnt know it was shipping from the manufaturer and in route but showed up unexpected on a monday after a snowstorm so not bad

Went great

Ordering was easy ... Now if the 2 day shipping is true it will b awesome

Excelent

All went well

Price is the best, ordering is quick and easy. I will be definitely be purchasing more items from thmotorsports.

Prices are among the lowest around. Had a change with my order. Customer support team was quick to respond to emails and make corrections. Will order from Autoplicity again.

Great price, good e-mail communication and fast shipping. Positive experience with Autoplicity so far.

Second time customer of Autoplicity: Ordered Husky Liners Weatherbeater Floor mats for a 2012 Toyota Tundra, Called in this morning to verify availability, call answered on second ring, great service placed the order immediately. Haven't even received the product yet but the service has been so outstanding had to let everyone know this company is for real. Best pricing online, wont buy products anywhere else.<br><br>Justin Myers

Prices are great on this site. The layout and checkout process are easy to use; Google checkout is definitely a plus. Shipping could be a little faster, especially if they had drop ships from their supplies for items not currently in stock. Overall good service and no problems.

I bought this item for my fiance and he loves it! He was completely happy with the price we paid...

Quick and easy. I just hope it works for my application:)

Autoplicity has made my parts search so much easier. With the best price gurantee, i can now make autoplicity my one-stop shop for all my parts needs.

Good site easy to search for and find parts. The lowest prices on almost every part I have been able to find for my truck.

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