Description

Header Stud – 3/8-16 and 3/8-24 in Thread – 1.675 in Long – Nuts Included – Broached – Small Journal – Steel – Black Oxide – Small Block Chevy – Set of 12

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.

Global Shipping Estimates (Ships from USA)

Destination Region Est. Delivery Time Estimated Cost
🇨🇦 Canada 5 - 7 Days
DHL UPS USPS FedEx
From $50.00 USD
🇪🇺 European Countries 5 - 7 Days
DHL UPS USPS FedEx
From $70.00 USD
🇦🇺 Australia 5 - 7 Days
DHL UPS USPS FedEx
From $110.00 USD
🇦🇪 United Arab Emirates 5 - 7 Days
DHL UPS USPS FedEx
From $100.00 USD
🇸🇦 Saudi Arabia 5 - 7 Days
DHL UPS USPS FedEx
From $100.00 USD
🇯🇵 Asia Countries 5 - 7 Days
DHL UPS USPS FedEx
From $130.00 USD
*Note: These are estimated costs for a standard package. Exact shipping fees will be calculated at checkout using live rates based on your specific location and cart weight.

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 SBC 12pt Header Stud Kit 3/8 x 1.675 10459”

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

    NITROUS OXIDE SYSTEMS Refill Station w/Scale & Regulator 14254NOS

    SKU: NOS14254
    Product information
    Details...
    Original price was: $3,214.00.Current price is: $2,920.95.Add to cart
    Original price was: $3,214.00.Current price is: $2,920.95.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MOROSO Fuel Fitting 65390

    SKU: MOR65390
    Product information
    • Weight0.135 lbs
    • Dimensions5 × 3.7 × 1.05 in
    • Style

      Straight

    • Fitting End 1 Size

      1/2 in

    • Fitting End 1 Style

      Hose Barb

    • Fitting End 2 Size

      3/8 in NPT

    • Fitting End 2 Style

      Male

    Details...
    Original price was: $22.99.Current price is: $19.99.Add to cart
    Original price was: $22.99.Current price is: $19.99.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    SEALED POWER Cast Piston H860CP60

    SKU: SEAH860CP60
    Product information
    • Weight13.2 lbs
    • Dimensions18.3 × 9.4 × 4.5 in
    • Product Line

      Speed-Pro

    • Bore

      4.060 in

    • Style

      Flat Top

    • Material Style

      Hypereutectic

    • Coated

      Skirt

    Details...
    Original price was: $250.01.Current price is: $227.28.Add to cart
    Original price was: $250.01.Current price is: $227.28.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HUSKY LINERS Aeroskin Lightshield Pro 2820168

    SKU: HSK2820168
    Product information
    • Weight7 lbs
    • Dimensions76 × 14.13 × 6.88 in
    • Application Specific

      Yes

    • Mounting Style

      Stick-On

    • Material

      Plastic

    • Color

      Black

    • Quantity

      Each

    Details...
    Original price was: $275.00.Current price is: $249.99.Add to cart
    Original price was: $275.00.Current price is: $249.99.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FLOWMASTER Super 44 Series Muffler 8430452
    Add to wishlist

    FLOWMASTER Super 44 Series Muffler 8430452

    SKU: FLO8430452
    Product information
    • Weight10.6 lbs
    • Dimensions20.5 × 9.9 × 4.5 in
    • Product Line

      Super 44 Series

    • Internal Construction

      Chambered

    • Base Construction

      Welded

    • Case Shape

      Oval

    • Case Length

      13 in

    Details...
    Original price was: $139.00.Current price is: $125.95.Add to cart
    Original price was: $139.00.Current price is: $125.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FIVESTAR Rear Deck Slider Kit 802-3
    Add to wishlist

    FIVESTAR Rear Deck Slider Kit 802-3

    SKU: FIV802-3
    Product information
    • Weight0.675 lbs
    • Dimensions6.95 × 4.1 × 1.55 in
    • Brand

    • Type

    • Condition

    • Manufacturer Part Number (MPN)

      802-3

    Details...
    Original price was: $21.85.Current price is: $19.00.Add to cart
    Original price was: $21.85.Current price is: $19.00.Add to wishlist
  • Add to wishlist
    Sale
    EAGLE SBC Rotating Assembly Kit - Competition 12012030
    Add to wishlist

    EAGLE SBC Rotating Assembly Kit – Competition 12012030

    SKU: EAG12012030
    Product information
    • 1 / 2 Piece Rear Main Seal

      2 Piece

    • Rod Journal Diameter

      2.100 in

    • Intended Balance

      Internal

    • Quantity

      Kit

    • Variant

      Yes

    • Product Line

      Competition

    • Cubic Inch

      383.0

    Details...
    Original price was: $2,603.44.Current price is: $2,366.76.Add to cart
    Original price was: $2,603.44.Current price is: $2,366.76.Add to wishlist
  • Add to wishlist
    Sale
    DERALE Trans Cooler Installatin Kit 13022
    Add to wishlist

    DERALE Trans Cooler Installatin Kit 13022

    SKU: DER13022
    Product information
    Details...
    Original price was: $84.30.Current price is: $73.30.Add to cart
    Original price was: $84.30.Current price is: $73.30.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    AUTOMETER 2-1/16 Mini Sport Comp 3337
    Add to wishlist

    AUTOMETER 2-1/16 Mini Sport Comp 3337

    SKU: ATM3337
    Product information
    • Weight0.65 lbs
    • Dimensions4.7 × 4.7 × 4.5 in
    • Quantity

      Each

    • Product Line

      Sport-Comp

    • Gauge Type

      Water Temperature

    • Gauge Diameter (In)

      2-1/16 in

    • Gauge Diameter (Mm)

      52.4 mm

    Details...
    Original price was: $84.96.Current price is: $77.24.Add to cart
    Original price was: $84.96.Current price is: $77.24.
    Quantity Only 7 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    ALLSTAR PERFORMANCE Countersunk Bolt Kit Blue 10pk ALL18683
    Add to wishlist

    ALLSTAR PERFORMANCE Countersunk Bolt Kit Blue 10pk ALL18683

    SKU: ALL18683
    Product information
    • Weight0.28 lbs
    • Dimensions7.1 × 4 × 1.2 in
    • Intended Purpose

      Body Bolt

    • Bolt A Thread Size

      1/4-20 in

    • Bolts Included

      Yes

    • Bolt Quantity

      10.0

    • Bolt A Length

      1 in

    Details...
    Original price was: $24.00.Current price is: $21.49.Add to cart
    Original price was: $24.00.Current price is: $21.49.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist

    11