ARP 400-2421 Set Carburetor Stud Thread Hex Nuts 672036047238 5/16-18 5/16-24

( Brand: Arp ), ( Manufacturer Part Number: 400-2421 ), ( Type: Carburetor Stud ), ( Fitment Type: Universal ), ( Color: Polished ), ( Material: Stainless Steel ), ( UPC: 672036047238 ), ( Manufacturer Warranty: Lifetime ), ( Product Details: All Product Details Available Below ), ( International Customers: Hassle-free Global Shipping, We Handle All Paperwork ), ( Product Weight: 0.20 Lbs ), ( Product Length: 6 In ), ( Product Width: 4 In ), ( Product Height: 0.75 In )

Review ARP Set Of Carburetor Stud 5/16-18 And 5/16-24 Thread Hex Nuts fits SS

The ARP 400-2421 Set Carburetor Studs and Hex Nuts are a vital upgrade for any engine that utilizes carburetor applications. These high-performance parts are engineered to provide superior strength and durability compared to standard studs and nuts.

The set includes four carburetor studs, each with a 5/16-18 thread on one end and a 5/16-24 thread on the other. This unique thread design allows for versatility in various applications, ensuring a perfect fit for both the intake manifold and the carburetor. The studs are manufactured using ARP's proprietary J2 thread rolling process, ensuring a secure and leak-free connection.

Additionally, the set includes eight hex nuts with a 5/16-24 thread, designed to securely fasten the carburetor to the intake manifold. These hex nuts are made from the same high-quality materials as the studs, ensuring a consistent level of strength and reliability.

Each part is meticulously crafted from ARP's premium materials, including 625 series alloy for the studs and 4340 steel for the hex nuts. This ensures that these parts are capable of withstanding the rigors of high-performance applications, without the risk of failure or fatigue.

The ARP 400-2421 Set Carburetor Studs and Hex Nuts are an essential upgrade for any engine builder or performance enthusiast seeking to enhance the reliability and durability of their carburetor setup. These high-quality parts are designed to provide a secure and leak-free connection, ensuring optimal engine performance and longevity.

ARP 400-2421 Set Carburetor Studs and 5/16-18 to 5/16-24 Hex Nuts: A Detailed Analysis

The ARP 400-2421 set includes carburetor studs and hex nuts designed for applications where two different thread sizes are used. Let's weigh the pros and cons of purchasing this set.

1. High-Quality Material: ARP uses 6061-T6 aluminum for the studs and 4130 Chromolly steel for the hex nuts. These materials ensure durability, strength, and resistance to corrosion.

2. Precision Manufacturing: ARP is known for its precision manufacturing, ensuring a perfect fit and eliminating the need for additional thread chasing or facing.

3. Improved Performance: Upgrading to ARP studs and nuts can help improve engine performance by reducing the chances of stud failure, leading to improved sealing and better engine response.

4. Variety of Applications: ARP offers this set for various engines, making it a versatile option for different applications.

5. Longevity: The high-strength materials used ensure that the studs and nuts last longer than OEM parts, reducing the need for frequent replacements.

1. Cost: ARP parts tend to be more expensive than OEM alternatives. However, the increased cost is often justified by the superior quality and longevity of the parts.

2. Not a Universal Solution: While the ARP 400-2421 set can be used in various applications, it might not be the perfect fit for every engine or application. It's essential to double-check compatibility before purchasing.

3. Installation: Installing ARP studs and nuts can be a more complex process than installing OEM parts due to the need for thread chasing and the use of specialized tools.

The ARP 400-2421 set of carburetor studs and hex nuts offers several benefits, including high-quality materials, improved performance, and longevity. However, the cost and installation process might be drawbacks for some. Ultimately, the decision to purchase this set depends on the specific needs, budget, and application requirements.

If you're looking for a high-performance, durable solution for your engine's carburetor studs and nuts, the ARP 400-2421 set is an excellent choice. However, ensure that it's compatible with your engine before making the purchase. The investment in these upgraded parts will provide you with the peace of mind that comes from knowing that your engine components are of the highest quality and built to last.

part # 4002421 prices

• $24.17-$35.15

specifications carbcaddie:

• for models: Ss
• brand: Arp
• manufacturer part number: 400-2421
• type: Carburetor Stud
• fitment type: Universal
• color: Polished
• material: Stainless Steel
• upc: 672036047238
• manufacturer warranty: Lifetime
• product details: All Product Details Available Below
• international customers: Hassle-free Global Shipping, We Handle All Paperwork
• product weight: 0.20 Lbs
• product length: 6 In
• product width: 4 In
• product height: 0.75 In

seller carbcaddie:

• rating: 99.0%
• # reviews: 2300

payments carbcaddie:

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

offer carbcaddie:

• availability: In Stock
• quantity: 4
• sold: 0
• options: Ship-to-home
• started: June 12, 2026

returns carbcaddie:

• paid by: Seller
• policy: Returns Accepted
• time: 60 Days

shipping carbcaddie:

• service: FedEx Express Saver, FedEx 2Day
• type: Fixed
• transit: 4-8 Days
• cost: $0.00
• class: Expedited
• carrier: FedEx

general carbcaddie:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
• condition: New

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