Description

Main Bolt Kit – Patriot Series – Hex Head – 4-Bolt Mains – Chromoly – Black Oxide – Big Block Chevy – Kit

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.

Reviews

There are no reviews yet.

Be the first to review “OPTITORQUE TECHNOLOGIES LLC BBC Main Bolt Kit 4 Bolt Mains 10530”

Your email address will not be published.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

Recently viewed products

  • Add to wishlist
    Sale
    Placeholder
    Add to wishlist

    DIVERSIFIED MACHINE Platinum Reserve Engine Conversion for Rotator PRC-3000Z

    SKU: DMIPRC-3000Z
    Product information
    Details...
    Original price was: $311.70.Current price is: $283.36.Add to cart
    Original price was: $311.70.Current price is: $283.36.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PERTRONIX IGNITION HEI III Performance Module (4 Pin) D72000

    SKU: PRTD72000
    Product information
    • Weight0.125 lbs
    • Dimensions4.35 × 3.1 × 3.05 in
    • Material

      Ceramic

    • Color

      Black

    • Finish

      Natural

    • Quantity

      Each

    • Product Line

      Flame-Thrower

    Details...
    Original price was: $129.00.Current price is: $116.90.Add to cart
    Original price was: $129.00.Current price is: $116.90.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION 90 Deg. Pro Temp. Boot Kit (8pcs.) 8852

    SKU: MSD8852
    Product information
    • Weight0.33 lbs
    • Dimensions7.85 × 6.1 × 1.5 in
    • Material

      Rubber

    • Color

      Red

    • Finish

      Natural

    • Quantity

      Set of 8

    • Product Line

      Pro Race

    Details...
    Original price was: $45.00.Current price is: $40.49.Add to cart
    Original price was: $45.00.Current price is: $40.49.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    QUARTER MASTER Remote Bleeder Line 710016

    SKU: QTR710016
    Product information
    • Weight0.1 lbs
    • Dimensions5.25 × 4 × 0.6 in
    • Quantity

      Each

    • Variant

      Yes

    • Hose Material

      Braided Stainless

    • Ptfe Lined

      Yes

    • Hose A Length

      11.25 in

    Details...
    Original price was: $40.00.Current price is: $35.53.Add to cart
    Original price was: $40.00.Current price is: $35.53.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MILODON Main Cap Kit B.B. Chevy 11200

    SKU: MIL11200
    Product information
    • Weight15.5 lbs
    • Dimensions8.9 × 5.4 × 3.2 in
    • Material

      Ductile Iron

    • Color

      Cadmium

    • Finish

      Plated

    • Quantity

      Kit

    • Main Cap Fasteners Included

      Yes

    Details...
    Original price was: $482.94.Current price is: $419.95.Add to cart
    Original price was: $482.94.Current price is: $419.95.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOWE C/O Spring Helper 10# Red SA4310

    SKU: HOWSA4310
    Product information
    • Weight0.09 lbs
    • Dimensions4.5 × 4.1 × 1.9 in
    • Material

      Polyurethane

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Variant

      Yes

    Details...
    Original price was: $40.08.Current price is: $36.44.Add to cart
    Original price was: $40.08.Current price is: $36.44.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VIBRANT PERFORMANCE Fitting Replacement Oliv e for PTFE Hose Ends -10 28980

    SKU: VIB28980
    Product information
    • Weight0.035 lbs
    • Dimensions4.8 × 3.55 × 1.2 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Set of 5

    • Variant

      Yes

    Details...
    Original price was: $23.75.Current price is: $19.79.Add to cart
    Original price was: $23.75.Current price is: $19.79.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VOLANT Open Element Air Intake 27740

    SKU: VOL27740
    Product information
    • Weight5.24 lbs
    • Dimensions17.95 × 11.8 × 9.65 in
    • Tube Material

      Plastic

    • Tube Color

      Black

    • Tube Finish

      Natural

    • Filter Shape

      Cone

    • Filter Style

      Washable

    Details...
    Original price was: $395.88.Current price is: $329.90.Add to cart
    Original price was: $395.88.Current price is: $329.90.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WEIAND Bbc Stealth (Rect-Port) 8018

    SKU: WEI8018
    Product information
    • Weight23.16 lbs
    • Dimensions25.3 × 12.45 × 7.4 in
    • Material

      Aluminum

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Each

    • Style

      Dual Plane

    Details...
    Original price was: $480.00.Current price is: $435.95.Add to cart
    Original price was: $480.00.Current price is: $435.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jets (2) 122-95

    SKU: HLY122-95
    Product information
    • Weight0.02 lbs
    • Dimensions5.05 × 3.5 × 0.5 in
    • Fuel Type

      Gasoline

    • Inside Diameter

      0.1165 in

    • Jet Number

      95.0

    • Style

      Main

    • Thread

      1/4-32 in

    Details...
    Original price was: $17.00.Current price is: $14.69.Add to cart
    Original price was: $17.00.Current price is: $14.69.Add to wishlist

    39