ARP Mazda Miata Main Stud Kit - Part #218-5401

Unlock Maximum Performance and Strength with ARP Main Studs

When it comes to building a high-performance engine, the foundation starts with a secure and durable block. The ARP Mazda Miata Main Stud Kit is designed to provide unparalleled clamping force and enhance the reliability of your engine under extreme conditions. Whether you're racing, boosting power, or pushing your Miata to its limits, this kit ensures your engine stays together when it matters most.

Key Features:

  • Premium-Grade ARP 2000 Material: Manufactured from ARP 2000 material, known for its 220,000 psi tensile strength, this stud kit is engineered to handle the extreme stresses of high-performance engines and forced induction applications.
  • Enhanced Clamping Force: ARP main studs provide a superior clamping force compared to stock bolts, preventing main cap movement and ensuring the integrity of your engine block under high-rpm, high-boost, or high-load conditions.
  • Precision Fitment: Specifically designed for Mazda Miata 1.6L/1.8L engines, these main studs offer a perfect fit with no modifications required for easy installation.
  • Corrosion Resistance: Heat-treated and coated for added durability, the studs resist corrosion and can withstand the harshest engine environments, keeping your build protected in the long run.
  • Heavy-Duty Design: These studs are larger in diameter than stock bolts and feature precision threading, ensuring a secure and consistent fit to keep your engine's bottom end intact.

Benefits:

  • Maximize Engine Durability: Whether you're building a naturally aspirated, turbocharged, or supercharged Miata, ARP main studs ensure that your main caps stay securely in place, preventing warping and gasket failure even under the most extreme loads.
  • Improved Engine Performance: By maintaining consistent clamping force, ARP main studs help to optimize engine block integrity, which is critical when increasing power output or tackling tough race conditions.
  • Ideal for High-Performance Applications: Perfect for track racing, street builds, and forced induction setups, ARP main studs are engineered to support the most demanding engine builds, including those with higher compression ratios and additional power adders.
  • Easy Installation: The ARP Main Stud Kit is designed for a hassle-free installation using your stock main caps and block configuration. There are no special tools required—just reliable, race-ready strength from the start.
  • Peace of Mind: Engineered and quality-checked by ARP's experienced team, these main studs provide the confidence you need to push your Miata's engine to its limits without worrying about component failure.

Build the Engine You Deserve with ARP

For an engine that can handle extreme performance, you need components that provide unwavering strength and reliability. The ARP Mazda Miata Main Stud Kit is designed to ensure your engine’s bottom end stays strong and stable, no matter what power level you're running.

Order Now to unlock the next level of engine performance and dependability. Don't settle for less—choose ARP, the industry leader in high-performance fasteners.



This Part Fits:

Year Make Model Submodel
1999 Mazda Miata 10th Anniversary
1990-1997,1999-2005 Mazda Miata Base
1993 Mazda Miata LE
2000-2005 Mazda Miata LS
1994-1997 Mazda Miata M Edition
2004-2005 Mazda Miata Mazdaspeed
1991,2000-2003 Mazda Miata SE
2003 Mazda Miata Shinsen
1997 Mazda Miata STO

Shipping Policies

Free Shipping on all orders over $56.

For orders under $56, we offer ground shipping for only $9.99.

Need your parts faster? Flat-rate expedited shipping options are available.

Standard delivery in 3-5 business days or less.

For in-stock items, our free ground shipping reaches any of the 48 contiguous U.S. states in 5 business days or less.

International Shipments

Garage 56 Engineering provides the best service and quality parts to customers all over the globe every day. We understand that purchasing parts internationally can be stressful and would like you to know we are committed to helping at every step of the way.

Transit times listed on the website are estimates and will vary depending on your location as well as the amount of time it will take your government to process the order through customs. In most cases, orders take around a week to arrive but can be closer to two to three weeks to some countries.

You may be charged a duty (tax) on your order. We do not handle this tax and your local customs agency will charge you the correct amount per your local laws. It is your responsibility to review and understand these taxes when ordering.

Please note that our fitment data and vehicle selector is for United States of America Market cars only. If you are searching for parts for an international car please search for exact part numbers.


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We have a 365-day return policy, which means you have 1 year after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at info@garage-56.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

You can always contact us for any return question at info@garage-56.com.

Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

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