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

    MSD IGNITION Magnetic Pickup 8505

    SKU: MSD8505
    Product information
    • Weight0.335 lbs
    • Dimensions7.8 × 6 × 1.5 in
    • Material

      Steel

    • Color

      Zinc

    • Finish

      Plated

    • Quantity

      Each

    • Wiring Harness Included

      Yes

    Details...
    Original price was: $220.00.Current price is: $199.95.Add to cart
    Original price was: $220.00.Current price is: $199.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION High-Current Solid State Relay 35 Amp x 4 Black 75643-HC

    SKU: MSD75643-HC
    Product information
    • Weight0.865 lbs
    • Dimensions6.65 × 6.5 × 3.3 in
    • Color

      Black

    • Finish

      Natural

    • Quantity

      Kit

    • Variant

      Yes

    • Variant Group

      Relays/Relay Kits4

    Details...
    Original price was: $246.00.Current price is: $222.95.Add to cart
    Original price was: $246.00.Current price is: $222.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    LONGACRE Compact Valve Core Tool 52-50272

    SKU: LON52-50272
    Product information
    • Weight0.05 lbs
    • Dimensions5.55 × 4.15 × 0.4 in
    • Quantity

      Each

    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Natural

    • Style

      Valve Core Tool

    Details...
    Original price was: $12.07.Current price is: $10.97.Add to cart
    Original price was: $12.07.Current price is: $10.97.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    JAZ Repl. Flush Mount Cap 340-200-06

    SKU: JAZ340-200-06
    Product information
    • Weight0.305 lbs
    • Dimensions4.2 × 3.8 × 2.5 in
    • Material

      Plastic

    • Quantity

      Each

    • Color

      Red

    • Finish

      Natural

    • Cap Retention Method

      Twist-On

    Details...
    Original price was: $60.16.Current price is: $54.69.Add to cart
    Original price was: $60.16.Current price is: $54.69.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    Ti22 PERFORMANCE Throttle Pedal Floor Mount Plain TIP4103

    SKU: TIP4103
    Product information
    • Weight0.485 lbs
    • Dimensions10.05 × 9.05 × 4.9 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Anodized

    • Quantity

      Each

    • Hardware Included

      Yes

    Details...
    Original price was: $61.19.Current price is: $50.99.Add to cart
    Original price was: $61.19.Current price is: $50.99.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HYPERCO Bump Stop Spring 1800lbs 20BS1800

    SKU: HYP20BS1800
    Product information
    • Weight0.65 lbs
    • Dimensions6 × 4 × 4 in
    • Spring Type

      Bump Stop

    • Length

      2.1 in

    • Outside Diameter

      2.038 in

    • Material

      Steel

    • Color

      Blue

    Details...
    Original price was: $146.30.Current price is: $133.00.Add to cart
    Original price was: $146.30.Current price is: $133.00.
    Quantity Only 7 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Quick Change Gears 8556

    SKU: WIN8556
    Product information
    • Weight6.9 lbs
    • Dimensions8.8 × 5 × 2 in
    • Spline

      10.0

    • Set Number

      56

    • Gear 1 Tooth Count

      17.0

    • Gear 2 Tooth Count

      31.0

    • 4:12 Ring And Pinion Low Ratio

      2.26

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FORD Roller Cam Conversion Kit M-6253-A50
    Add to wishlist

    FORD Roller Cam Conversion Kit M-6253-A50

    SKU: FRDM6253-A50
    Product information
    • Weight1.33 lbs
    • Dimensions15.7 × 6.15 × 3.95 in
    • Material

      Steel

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Kit

    • Style

      Spider

    Details...
    Original price was: $154.25.Current price is: $140.23.Add to cart
    Original price was: $154.25.Current price is: $140.23.Add to wishlist
  • Add to wishlist
    Sale
    DIVERSIFIED MACHINE Side Bell Stud RRC-1110
    Add to wishlist

    DIVERSIFIED MACHINE Side Bell Stud RRC-1110

    SKU: DMIRRC-1110
    Product information
    • Weight0.05 lbs
    • Dimensions2.8 × 2.7 × 0.4 in
    • Length

      2.500 in

    • Material

      Chromoly

    • Color

      Cadmium

    • Finish

      Plated

    • Quantity

      Each

    Details...
    Original price was: $8.10.Current price is: $7.36.Add to cart
    Original price was: $8.10.Current price is: $7.36.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    DAKOTA DIGITAL OBD-II Interface STA-1000

    SKU: DDGSTA-1000
    Product information
    Details...
    Original price was: $142.03.Current price is: $123.50.Add to cart
    Original price was: $142.03.Current price is: $123.50.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist

    104