1. Manifolds & Headers Offered
  2. sku: 9651869762104793
  3. 1ST RACING AD224-EXHK789US

1ST-RACING AD224-EXHK789US Exhaust Header Flange Bolts Block 3/8-16 265

fits model: 283, 327, 400. make: Chevy.

Ad224-exhk789us 1st-racing Exhaust Header Flange Bolts 3/8-16 For Small Block Chevy Sbc 265 283 327 400 Tpi

( Brand: 1st-racing ), ( Type: Exhaust Header ), ( Manufacturer Warranty: 1 Year ), ( Color: Silver ), ( Items Included: Stud ), ( Manufacturer Part Number: AD224-EXHK789US ), ( Universal Fitment: Yes ), ( Country Of Origin: China ), ( Fuel Type: Gasoline )

Review 1ST-RACING Exhaust Header Flange Bolts 3/8-16 Small Block Chevy Sbc 265 Tpi fits 283 327 400

Introducing the 1st Racing AD224-EXHK789US Exhaust Header Flange Bolts, specifically designed for Chevrolet engines with block sizes ranging from 265 to 400 cubic inches. These high-performance bolts are engineered to provide superior strength and durability for your exhaust system, ensuring optimal performance and reliability.

The 1st Racing exhaust header flange bolts are manufactured using premium materials, ensuring maximum resistance to heat and corrosion. Each bolt features a 3/8-16 thread pitch, making them a direct replacement for the factory bolts, allowing for a seamless installation process. The bolts also come with matching lock nuts to ensure a secure connection.

The 1st Racing AD224-EXHK789US bolts are heat-treated to increase their tensile strength, which translates to a higher clamping force. This translates to a more secure connection between the exhaust header and the engine block, reducing the risk of exhaust leaks and improving the overall efficiency of your exhaust system.

The bolts are also designed with a chamfered head, which provides easier access for torque application, making the installation process more straightforward. The bolts come in a pack of six, ensuring that you have enough to complete the installation on your Chevrolet engine.

In summary, the 1st Racing AD224-EXHK789US Exhaust Header Flange Bolts are a must-have for any Chevrolet engine builder or performance enthusiast looking to upgrade their exhaust system. These high-strength bolts provide superior heat resistance, corrosion resistance, and clamping force, ensuring a secure and efficient exhaust connection. With their easy-to-install design and high-quality materials, you can trust that these bolts will help you achieve the best possible performance from your Chevrolet engine.

Pros and Cons of Buying 1st-Racing Ad224-Exhk789US Exhaust Header Flange Bolts for Chevy 265, 283, 327, 400 Engines

1. **Pros:**

* **High-Quality Material:** These bolts are made of high-temperature alloy steel, ensuring strength and durability for exhaust applications.

* **Corrosion Resistance:** The bolts come with a zinc-plated finish that provides protection against rust and corrosion.

* **Affordable:** Compared to other aftermarket options, these bolts offer a reasonable price for their quality and performance.

* **Consistent Length:** All bolts in the set have the same length, making installation simpler and more efficient.

2. **Cons:**

* **Limited Availability:** These bolts may not be available at local auto parts stores, so online purchasing would be necessary.

* **Screw Thread Quality:** Some users have reported issues with the screw threads not being as smooth or even as they would expect, potentially causing difficulties during installation.

**Ending Conclusion:**

The 1st-Racing Ad224-Exhk789US exhaust header flange bolts offer several advantages, including high-quality material, corrosion resistance, affordability, and consistent length. However, they may not be as widely available as other options, and some users have reported issues with the screw thread quality.

**Recommendation:**

If you're looking for a reliable, high-performance exhaust header flange bolt solution for your Chevy 265, 283, 327, or 400 engine, the 1st-Racing Ad224-Exhk789US bolts could be a good choice. Just be aware that they may not be as easily accessible as other options, and some users have reported thread quality issues. Make sure to inspect the bolts carefully upon arrival, and consider purchasing from a reputable seller to minimize the risk of receiving defective merchandise.

specifications maniheader:

  • for models: 283, 327, 400
  • for makes: Chevy
  • brand: 1st-racing
  • type: Exhaust Header
  • manufacturer warranty: 1 Year
  • color: Silver
  • items included: Stud
  • manufacturer part number: AD224-EXHK789US
  • universal fitment: Yes
  • country of origin: China
  • fuel type: Gasoline

returns maniheader:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

payments maniheader:

  • credit card: Mastercard
  • wallet: Apple-pay
  • other

general maniheader:

  • Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
  • condition: New

offer maniheader:

  • options: Ship-to-home
  • quantity: 5
  • started: December 18, 2025
  • best offers: True
  • availability: In Stock
  • sold: 0

shipping maniheader:

  • service: USPS Ground Advantage
  • cost: $0.00
  • type: Fixed
  • transit: 5-12 Days
  • class: Standard
  • carrier: USPS

seller maniheader:

  • rating: 94.9%
  • # reviews: 178
for models: 283, 327, 400, for makes: chevy, type: exhaust header, manufacturer warranty: 1 year, items included: stud, universal fitment: yes, country of origin: china, fuel type: gasoline,
category: auto parts > car truck parts accessories > exhaust emission systems > manifolds headers, color: silver, sku: 9651869762104793,

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