MANLEY 11390-8 Intake Valve 807298051659 R/m 2.055

( Brand: Manley ), ( Manufacturer Part Number: 11390-8 ), ( Part Type: Intake Valve ), ( UPC: 807298051659 )

Review MANLEY Intake Valve R/m 2.055 fits LS-1

The Manley 11390-8 Intake Valve for LS-1/RVM engines is a high-performance upgrade for those seeking to enhance the breathing capabilities of their engine. This intake valve, specifically designed for the 2.055-inch intake port, is a critical component of the engine's intake system. It is manufactured using Manley's proprietary Valve-Tec process, which ensures superior metallurgical properties and exceptional durability.

This intake valve is made from a single piece of forged 356 aluminum alloy, which provides unparalleled strength and resistance to thermal fatigue. The valve seat is engineered from Manley's exclusive Ni-Resist alloy, ensuring a long-lasting, leak-free seal. The valve's stem is precision-machined from chrome molybdenum steel, offering excellent strength and corrosion resistance.

Manley's intake valve features a unique valve head design, which optimizes flow characteristics and reduces turbulence. This results in more efficient intake charging, leading to increased power and torque. The valve also incorporates a hollow stem design, which reduces the valve mass and improves valve response.

This Manley intake valve is designed to work seamlessly with the OE (Original Equipment) camshaft and lifters. It is suitable for use in high-performance applications, including racing, hot rods, and high-horsepower street engines. The valve comes complete with a new valve spring and retainers, ensuring a hassle-free installation process.

In summary, the Manley 11390-8 Intake Valve for LS-1/RVM engines is a high-quality, high-performance upgrade that provides a significant improvement in intake flow and efficiency. It is meticulously engineered using advanced manufacturing processes and top-tier materials, ensuring unmatched durability and reliability. This intake valve is an excellent choice for those seeking to unlock the full potential of their LS engine.

The Manley 11390-8 intake valve (2.055 inches) for LS-1 engines is a performance aftermarket part designed to improve engine breathing and power output. Here are some pros and cons that may help you make an informed decision about purchasing this product:

1. Enhanced Air Flow: Manley intake valves are known for their superior air flow capabilities. The larger intake valve size allows more air to enter the engine cylinders, resulting in increased power and torque.

2. Improved Engine Response: Manley intake valves can provide improved engine response, allowing for quicker throttle response and smoother power delivery.

3. Durability: Manley intake valves are made from high-quality materials, ensuring long-lasting performance and reliability. The valves are made from steel, which is more durable than the stock aluminum intake valves.

4. High-Performance: Manley intake valves are designed for high-performance applications, making them an excellent choice for those seeking to extract maximum power from their LS-1 engine.

5. Precision Machining: Manley intake valves are precision-machined to ensure exact fitment and optimal performance.

1. Cost: Manley intake valves are more expensive than stock intake valves. This may not be an issue for those seeking maximum performance, but it could be a deterrent for those on a budget.

2. Installation: Installing aftermarket intake valves can be a complex and time-consuming process. It may require specialized tools and knowledge, and may involve other modifications to the engine or intake system.

3. Potential for Noise: Manley intake valves may produce more noise than stock valves due to their larger size and increased air flow. This may be a concern for those seeking a quieter driving experience.

The Manley 11390-8 intake valve is a high-performance aftermarket part that can provide significant power gains and improved engine response for LS-1 engines. Its durability, precision machining, and enhanced air flow capabilities make it an excellent choice for those seeking maximum performance. However, its cost, installation complexity, and potential for increased noise may be deterrents for some. Ultimately, the decision to purchase this product depends on your specific needs, budget, and performance goals.

If you are seeking maximum performance from your LS-1 engine and are willing to invest in a high-quality aftermarket intake valve, then the Manley 11390-8 intake valve is an excellent choice. However, if you are on a budget or are seeking a quieter driving experience, then you may want to consider other options or modifications. It is always recommended to consult with a professional mechanic or performance specialist to determine the best solution for your specific application.

Details:

Brand: Manley. Condition: New. MPN: 11390-8. Manufacturer: Manley.

Manley Valve - Intake, Valve-LS1 R/M 2.055 Manley?Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers ultimate choice for engines operating under 8000 RPM. Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States.

part #: 113908 price

• $217.04

specifications voomvalve:

• for models: Ls-1
• brand: Manley
• mpn: 11390-8
• part type: Intake Valve
• upc: 807298051659

shipping voomvalve:

• class: Expedited
• service: Expedited
• type: Fixed
• cost: $0.00
• transit: 2-6 Days

general voomvalve:

• condition: New
• Engines Engine Parts > Valvetrain Components > Valves

seller voomvalve:

• city: Grant, Michigan
• rating: 99.1%
• # reviews: 164251

payments voomvalve:

• wallet: Paypal
• other
• credit card: Discover

returns voomvalve:

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

offer voomvalve:

• availability: In Stock
• started: December 3, 2025
• options: Ship-to-home
• sold: 0
• quantity: 1

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