FAST 146074-8 Lsx Tunnel Stacks 103MM

( Brand: Fast ), ( Type: Intake Manifold ), ( Manufacturer Warranty: 1 Year ), ( Color: Black ), ( Manufacturer Part Number: 146074-8 ), ( California Prop 65 Warning: Cancer And Reproductive Harm )

Review FAST Lsx 103mm Tunnel Short Stacks fits RAM

Introducing the 146074-8 LSX 103mm Tunnel Ram Intake Manifold from Holley, a high-performance aftermarket solution for your LSx engine. This intake manifold is engineered to deliver increased power and torque, making it an excellent choice for hot rods, muscle cars, and high-performance applications.

The 103mm tunnel ram design is characterized by its low-mounted, high-flow runners that provide a direct path for fuel and air into the engine. Each runner is tuned for optimal velocity and length to ensure maximum power output. This manifold is suitable for both natural aspiration and forced induction applications, making it a versatile choice for various engine configurations.

The 146074-8 LSX Tunnel Ram Intake Manifold is CNC machined from aluminum for exceptional precision and durability. It features a cast aluminum plenum that ensures even fuel distribution and eliminates the possibility of hot spots, which can lead to detonation and power loss. The manifold comes with Holley's famous "Ram-Tuned" intake runners, which are designed to provide excellent intake velocity for maximum power output.

The manifold's surface finish is anodized for corrosion resistance and easy maintenance. It is also compatible with various throttle body sizes, including 75mm, 85mm, and 95mm, making it a flexible option for different engine setups. Additionally, this manifold is compatible with Holley's EFI systems, allowing for precise fuel delivery and tuning.

The 146074-8 LSX 103mm Tunnel Ram Intake Manifold is a high-quality, high-performance upgrade for your LSx engine. Its unique design, precision manufacturing, and compatibility with various engine configurations make it an excellent choice for anyone seeking to extract maximum power from their LSx engine. Upgrade your intake system today with the 146074-8 LSX Tunnel Ram Intake Manifold from Holley.

Buying the 146074-8 LSX 103mm Tunnel Ram Intake Manifold from Holley Performance Products can offer several advantages for your high-performance engine build. Here are some pros and cons to help you make an informed decision:

1. Increased Airflow: The tunnel ram design of this intake manifold allows for a larger plenum volume and greater airflow compared to conventional intake manifolds. This can result in improved engine performance, particularly in the mid-range and top-end power.

2. Better Fuel Distribution: The Holley Tunnel Ram Intake Manifold is known for its excellent fuel distribution, which can lead to more consistent and complete combustion. This is especially beneficial for engines that require precise fuel delivery, such as those running high boost or nitrous oxide.

3. Customizable: The manifold is available in various sizes and configurations, allowing you to tailor the intake system to your specific engine and application. This includes options for different runner lengths, port sizes, and throttle body styles.

4. Robust Construction: The manifold is made from high-quality aluminum alloy and features thick walls, which can help improve durability and reduce the risk of warping or cracking under high engine pressures.

1. Complex Installation: Installing a tunnel ram intake manifold can be a more complex process compared to a standard intake manifold. This is due to the need for custom plumbing, fuel rails, and throttle body mounting.

2. Expensive: The Holley 146074-8 LSX Tunnel Ram Intake Manifold is a premium product, and the price reflects its high-performance capabilities. This may make it a less viable option for budget-conscious builders or those on a tight budget.

3. Limited Compatibility: The manifold may not be compatible with all engine applications or configurations. It is essential to verify that the manifold will fit your engine and that all necessary components are available before making a purchase.

The Holley 146074-8 LSX 103mm Tunnel Ram Intake Manifold is an excellent choice for high-performance engine builds that require increased airflow and precise fuel distribution. Its robust construction, customizable design, and superior performance make it a popular option among engine builders and racers. However, its complex installation process, limited compatibility, and high cost may make it a less attractive option for some. Ultimately, the decision to purchase this manifold depends on your engine build objectives, budget, and installation capabilities.

If you are looking to build a high-performance engine and are willing to invest in a premium intake manifold, the Holley 146074-8 LSX 103mm Tunnel Ram Intake Manifold is a strong contender. Its proven performance benefits, customizable design, and high-quality construction make it a worthwhile investment for serious engine builders. However, if you have limited budget or installation experience, you may want to consider alternative intake manifold options that are more accessible and cost-effective.

Details:

Short stack set for LSXHR intake. Got for tuning and never used them.

part #: 1460748 prices

• $118.92-$163.39

specifications inputmanifolds:

• for models: Ram
• brand: Fast
• type: Intake Manifold
• manufacturer warranty: 1 Year
• color: Black
• manufacturer part number: 146074-8
• california prop 65 warning: Cancer And Reproductive Harm

seller inputmanifolds:

• rating: 100.0%
• city: Benton, Kansas
• # reviews: 830

shipping inputmanifolds:

• class: Standard
• type: Calculated
• cost: $7.46
• transit: 5-12 Days
• service: USPS Ground Advantage
• carrier: USPS

payments inputmanifolds:

• credit card: Diners-club
• other
• wallet: Google-pay

offer inputmanifolds:

• quantity: 1
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: April 3, 2026

general inputmanifolds:

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

returns inputmanifolds:

• policy: No Returns

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