Description

Main Stud Kit – Patriot Series – Hex Nuts – 4-Bolt Mains – Chromoly – Black Oxide – Dart Big M – Splayed Cap Bolts – Big Block Chevy – Kit
Splayed Outer Caps

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About OPTITORQUE TECHNOLOGIES LLC

OptiTorque produces premium quality fasteners for a wide range of automotive applications. From stock rebuilds to hard-core racing builds, OptiTorque fasteners are USA made and designed, featuring premium materials and designed to meet or exceed OEM specs.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “OPTITORQUE TECHNOLOGIES LLC BBC Main Stud Kit Dart Big M Block 10531”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    KYB SHOCKS Replacement Strut 5640009

    SKU: KYB5640009
    Product information
    • Weight10.35 lbs
    • Dimensions28.00 × 5.00 × 5.00 in
    • Product Line

      MonoMax

    • Internal Design

      Monotube

    • Gas/Hydraulic

      Gas

    • Front/Rear

      Front

    • Hardware Included

      Yes

    Details...
    Original price was: $192.05.Current price is: $174.59.Add to cart
    Original price was: $192.05.Current price is: $174.59.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PROFORM SBC/BBC HEI Distributor 66940

    SKU: PFM66940
    Product information
    • Weight5.113 lbs
    • Dimensions17 × 8.2 × 7 in
    • Product Line

      High Performance

    • Quantity

      Each

    • Trigger Style

      Magnetic

    • Advance Type

      Vacuum

    • Cap Style

      Male

    Details...
    Original price was: $91.12.Current price is: $82.84.Add to cart
    Original price was: $91.12.Current price is: $82.84.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PRO SHOCK Shock Extension 2in C520

    SKU: PROC520
    Product information
    • Weight0.115 lbs
    • Dimensions3.5 × 1.55 × 0.85 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Variant

      Yes

    Details...
    Original price was: $25.19.Current price is: $20.99.Add to cart
    Original price was: $25.19.Current price is: $20.99.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MPD RACING MPD Catalog 2025 MPD100

    SKU: MPD100
    Product information
    Details...
    Original price was: $1.60.Current price is: $1.39.Add to cart
    Original price was: $1.60.Current price is: $1.39.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOOG Ball Joint K6145T

    SKU: MOGK6145T
    Product information
    • Weight1.8 lbs
    • Dimensions5.5 × 3.4 × 2.7 in
    • Quantity

      Each

    • Greasable

      Yes

    • Mounting Style

      Press In

    • Upper/Lower

      Lower

    • Hardware Included

      Yes

    Details...
    Original price was: $30.31.Current price is: $27.55.Add to cart
    Original price was: $30.31.Current price is: $27.55.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MILODON BBM Windage Tray 32005

    SKU: MIL32005
    Product information
    • Weight4.21 lbs
    • Dimensions24.75 × 10.5 × 3.5 in
    • Sump Location

      Center, Rear

    • Windage Tray Style

      Louvered

    • Mounting Location

      Pan Rail

    • Material

      Steel

    • Color

      Cadmium

    Details...
    Original price was: $106.89.Current price is: $92.95.Add to cart
    Original price was: $106.89.Current price is: $92.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MECHMAN ALTERNATORS Mechman Application Guide 200

    SKU: MEC200
    Product information
    Details...
    Original price was: $1.99.Current price is: $1.81.Read more
    Original price was: $1.99.Current price is: $1.81.Add to wishlist
  • Add to wishlist
    Sale
    Placeholder
    Add to wishlist

    Ti22 PERFORMANCE Half Nut 1/2-20 Thread Black 10 Pack TIP1196

    SKU: TIP1196
    Product information
    Details...
    Original price was: $10.31.Current price is: $8.59.Add to cart
    Original price was: $10.31.Current price is: $8.59.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VENTSHADE Ventvisor Acrylic 2pc 92111

    SKU: VEN92111
    Product information
    • Weight2.7 lbs
    • Dimensions50.25 × 15.5 × 1.75 in
    • Product Line

      Original Ventvisor

    • Application Specific

      Yes

    • Material

      Plastic

    • Color

      Smoke

    • Quantity

      Pair

    Details...
    Original price was: $50.00.Current price is: $44.99.Add to cart
    Original price was: $50.00.Current price is: $44.99.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WEATHERTECH SunShade TS1190

    SKU: WEATS1190
    Product information
    • Weight3 lbs
    • Dimensions40 × 5 × 3 in
    • Application Specific

      Yes

    • Material

      Cloth / Plastic

    • Color

      Black / Silver

    • Finish

      Natural

    • Quantity

      Each

    Details...
    Original price was: $93.00.Current price is: $83.95.Add to cart
    Original price was: $93.00.Current price is: $83.95.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist

    71