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ARP 156-4101 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 400-8521 Cylinder Head Fasteners

Part Number

156-4101
20 reviews
04/20/2034 1:09 AM
Sale Price

$311.49

In Stock (9)

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Product Details

ARP 156-4101 Head Studs



FITS CAST IRON SLANT 6 ENGINES.

(4.6L SOHC DOHC, 6 Point Nuts) 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
  • 4.6L SOHC DOHC, 6 Point Nuts

Products specifications

Cut to Fit

No

Fastener Finish

Black oxide

Fastener Material

8740 chromemoly

Fastener Style

Stud

Head Style

Hex

Quantity

Sold as a kit.

Washers Included

Yes

Showed up in 2 days, easy to put together, very sturdy, only trouble had the handrail didn't work on my boat should of had a left handrail.

Great work

Your site is awesome.

Just what I needed, somewhat hard to find seals delivered!

Super fast shipping

Very Professional Team!

Great price of the 5th wheel tailgate.

You did good. Free shipping would be better

So far so good

Autoplicity always has the lowest prices and they ship extremely quickly!

The price as well as the turn time for receiving my product was great. I placed an order late Sunday evening and I have received my order by Wednesday of that week. I still can't get over how great the price was for the bike rack I ordered compared to all of the other sites out there.

Was too easy

This was my first time using autoplicity and I was very happy with their service. Great prices and fast shipping.

I was a little concerned at first. They advertise same-day order processing, and they said my part was in stock. However, my order took three business days (plus the weekend) to finally ship. As long as the right part arrives, I'll be happy. The price was $100 less than everywhere else, so that can't be beat.

Shipped in a fair amount of time and customer service was easy to contact.

Good prices and quick shipment

Great experience! I placed my order on Sunday and my programmer arrived on Thursday - with ground shipping. I unpacked the programmer and it functioned exactly as I had hoped. I will definitely consider purchasing from Autoplicity again!

These guys have the best prices I could find by far, for the parts I needed. I have made two purchases from them so far and am sure there will be more. They ship fast and provide tracking information.<br>

Love the prices hope everything turns out ok

Super quick service! Great price and I received the product the day after I ordered it.

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