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ARP 135-5601 4-Bolt Main Stud Kit

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 400-7531 Valve Cover Bolts

Part Number

135-5601
16 reviews
04/20/2034 6:02 AM
Sale Price

$162.13

In Stock (10+)

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Product Details

ARP 135-5601 4-Bolt Main Stud Kit

The studs in this main stud kit are made from 8740 chromemoly steel and have 190000 psi tensile strength rating. They are precision centerless ground and thread rolled to Mil-S-8879 specs. They feature a black oxide finish hardened washers and hex nuts.

There are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. The studs are manufactured in their own factory using the best processes, designs, materials, and engineering. Every main stud kit exceeds the most stringent aerospace specifications, and come complete with hardened parallel-ground washers and aerospace quality nuts. The studs are manufactured from 8740 chrome moly steel, and heat-treated to 200,000 psi tensile strength. J-form threads are rolled after heat-treat to create a fastener that has threads 1000% stronger than others. Be aware that, although ARP produces both studs and bolts, they recommend the use of main studs over bolts whenever possible for several key reasons. First is the ability to obtain more accurate torque readings because studs don't "twist" into the block. All clamping forces are on one axis. By the same token, there is less force exerted on the block threads, which contributes to improved block life (which is very critical on aluminum blocks). They also allow for easier engine assembly and proper alignment of caps every time.

  • Main studs are recommended over main bolts for a number of reasons, including more accurate torque readings and easier engine assembly
  • Rolled J-form threads are 1000% stronger than other threads
  • Rated at 200,000 PSI, which is considerably stronger than Grade 8 hardware
  • Manufactured from 8740 chrome moly steel
  • Main studs are designed to meet the exacting standards and demands of professional engine builders

Products specifications

Fastener Nut Style

Standard hex

Fastener Style

Stud

Fastener Yield Strength (psi)

200,000 psi

Main Bolt Style

4-bolt

Nuts Included

Yes

Quantity

Sold as a kit.

Washers Included

Yes

Works with Windage Tray

No

Great price, free shipping and no tax. What else can you ask for!

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Quick and easy

Ordered two oxygen sensors but only one was shipped even though two were listed on the packing slip. I called customer service. A second sensor arrived two days later.

got a specialty tool and exactly what we needed

Parts were actually in-stock unlike every other retailer I tried. Quick shipping too.

Recent purchased new Hawk HPS brakes for my 2010 Hyundai Genesis Coupe 3.8 Track.<br><br>The order was processed quickly, packaged very well, and was the correct items I had ordered. <br><br>Not only did I experiece great customer service and quick shipping/processing, Autoplicity also had the LOWEST price of any vendors for these parts I could find online.<br><br>Great service + Great pricing = Match made in heaven!

The best price I could find and it arrived in 2 days! I'll be doing business again.

Had problems using the search tool so I called direct. They helped locate Air Lift shocks I needed and told me that I.E. browser is sometimes a problem. They were helpful and my items got shipped the next business day.

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Highly recommend ordering from this company. I was in deep search for a product that everybody else told me I wouldn't find until next year (e.g. 4 wheel parts). Autoplicity knew someone that had the product and made the transaction as seamless as possible. I know where to look for future orders. <br><br>One very happy customer!

really fast delivery!<br>Had exactly the products i was looking for in stock.

well made website would give 5 stars if i could confirm fast shipping.

Autoplicity has great prices on all your car modification needs.

I RECEIVED THE WRONG ITEM AND STILL WAITING FOR THE RETURN INFO SO I HAVE NOT YET BEEN ABLE TO RATE YOUR COMPANY AT THIS TIME HOW THIS IS HANDLED WILL DETERMINED HOW WELL I RATE YOUR COMPANY THANKS

Great website to maneuver around and great prices! I used amazon.com to check out with them. Great service so far! Thanks!!!! Recommended on my website!

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