CHEVROLET 12674428 Acdelco Performance Fuel Rails General

( Part Type: Fuel Motor ), ( Manufacturer Part Number: 12674428 ), ( Country Of Origin: United States )

Review CHEVROLET General Motors Acdelco Performance Fuel Rails fits LS3

Introducing the 12674428 ACDelco Chevrolet Performance LS3 Fuel Rails, a high-performance solution designed specifically for the demanding needs of LS3 engine applications. These fuel rails are an essential upgrade for enthusiasts seeking to optimize their engine's fuel delivery system for improved power and efficiency.

The ACDelco Performance LS3 Fuel Rails are engineered with precision and durability in mind. They are crafted from 6061-T6 billet aluminum, a material known for its strength and resistance to corrosion. The rails are CNC-machined to ensure a perfect fit and finish, with generous bore sizes to accommodate a wide range of fuel pressure requirements.

Each rail is equipped with four -6 AN fuel outlets, allowing for flexible fuel system configurations and easy integration with various fuel system components. The rails also feature integrated fuel pressure taps, enabling easy pressure monitoring for fine-tuning and diagnostics.

The ACDelco Performance LS3 Fuel Rails are designed to work seamlessly with various fuel systems, including returnless and return-style systems. They are also compatible with both EFI and carbureted applications, making them an versatile choice for a wide range of performance builds.

Additionally, these fuel rails come with a fuel pressure regulator bracket, which simplifies the installation process and ensures a secure and stable mounting position for the regulator. The bracket is also made of 6061-T6 billet aluminum for durability and longevity.

In summary, the 12674428 ACDelco Chevrolet Performance LS3 Fuel Rails are a must-have upgrade for any LS3 engine build. They offer superior strength, precision, and versatility, allowing you to optimize your fuel delivery system for maximum performance and efficiency. With their robust design and easy installation, these fuel rails are an excellent investment for any serious performance enthusiast.

Buying ACDelco Chevrolet Performance LS3 Fuel Rails: Pros and Cons

The ACDelco Chevrolet Performance LS3 Fuel Rails are aftermarket components designed for use in General Motors LS3 engines. These fuel rails offer several benefits and drawbacks that are essential to consider before making a purchase.

1. Improved Fuel Delivery: ACDelco LS3 fuel rails offer improved fuel delivery, ensuring that your engine receives an optimal fuel mixture for better performance and fuel economy.

2. Enhanced Durability: These fuel rails are engineered to last longer than OEM (original equipment manufacturer) fuel rails, reducing the likelihood of fuel leaks and other issues.

3. Easy Installation: ACDelco LS3 fuel rails are designed to be a direct fit, making the installation process relatively straightforward for most DIY enthusiasts.

4. Improved Appearance: The polished finish of these fuel rails can add an aesthetic appeal to your engine bay.

1. Cost: Compared to the OEM fuel rails, ACDelco Performance LS3 fuel rails can be more expensive.

2. Potential for Fuel Leaks: Despite the enhanced durability, there is still a slight risk of fuel leaks during installation or due to damage.

3. Requires Tuning: To achieve the best performance gains, these fuel rails may require additional tuning or reprogramming of the engine's ECU (engine control unit).

The ACDelco Chevrolet Performance LS3 Fuel Rails offer several advantages, including improved fuel delivery, enhanced durability, easy installation, and an aesthetically pleasing appearance. However, they also come with some potential drawbacks, such as increased cost, the risk of fuel leaks, and the need for additional tuning.

If you are looking for improved fuel delivery, enhanced durability, and a more attractive engine bay, the ACDelco Chevrolet Performance LS3 Fuel Rails are a solid choice. However, be prepared for the additional cost and the potential need for tuning to fully realize the performance benefits. If you are unsure about the installation process or are not comfortable with the potential risks, consider consulting a professional mechanic.

part # 12674428 prices

• $179.99-$2401.46

specifications injectiopug:

• for models: Ls3
• for makes: Chevrolet
• part type: Fuel Motor
• manufacturer part number: 12674428
• country of origin: United States

payments injectiopug:

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

offer injectiopug:

• sold: 0
• best offers: True
• quantity: 1
• started: March 5, 2026
• availability: In Stock
• options: Ship-to-home

returns injectiopug:

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

general injectiopug:

• condition: New
• Air Fuel Delivery > Fuel Injection Parts > Additional Fuel Injection Parts

seller injectiopug:

• rating: 98.4%
• # reviews: 2612

shipping injectiopug:

• service: USPS Ground Advantage
• cost: $0.00
• transit: 5-11 Days
• carrier: USPS
• type: Calculated
• class: Standard

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