MANLEY PERFORMANCE 12350-8 Head Flo Intake Valves Set Block 2.165 For LS3/L99

( Brand: Manley Performance ), ( Manufacturer Part Number: 12350-8 ), ( Type: Valves ), ( Fitment Type: Performance/custom )

Review MANLEY PERFORMANCE 2.165 Inch Head Flo Intake Valves Set Of For Chevy Small Block Ls3/l99 fits LS3

The Manley Performance 12350-8 2.165 head intake valves set is an excellent choice for Chevy LS3/L99 engine blocks in need of an upgrade. These valves are designed to deliver superior performance, durability, and reliability, making them a top pick among engine builders and high-performance enthusiasts.

Each valve in this set is crafted from high-quality 356 aluminum alloy, which is known for its exceptional strength and ability to withstand the extreme heat and pressure of a high-performance engine. The valves feature a 2.165-inch intake diameter and are designed to provide excellent flow characteristics, ensuring optimal air and fuel mixture delivery to the combustion chamber.

The Manley Performance intake valves also come with a unique, flat-top design that provides better sealing and reduces the risk of carbon buildup. The valves are also compatible with most aftermarket and OEM heads, making them a versatile option for various engine builds.

The valves come in a set of four, with each valve featuring a stem diameter of 0.595 inches and a stem length of 1.640 inches. They also come with stainless steel valve springs, which provide consistent valve control and help maintain optimal engine performance. The valves are also designed to work with OEM valve guides and seats, making installation a straightforward process.

In summary, the Manley Performance 12350-8 2.165 head intake valves set is an excellent choice for Chevy LS3/L99 engine blocks looking for improved performance and reliability. The valves are made from high-quality aluminum alloy, feature optimal flow characteristics, and come with stainless steel valve springs. The flat-top design provides better sealing, and the valves are compatible with most aftermarket and OEM heads. With these valves, engine builders and high-performance enthusiasts can expect superior performance, durability, and reliability from their engine.

Manley Performance 12350-8 2.165 head intake valves are aftermarket valves designed for Chevy LS3/L99 engine blocks. These valves are known for their high-performance capabilities and durability. Here are some pros and cons that can help you decide whether to purchase these valves:

1. Enhanced Performance: Manley Performance intake valves are larger in size than the stock valves, which allows for better airflow and increased power output.

2. Durability: These valves are made using high-quality materials, such as steel and titanium, which makes them more durable and capable of handling high-performance applications.

3. Improved Engine Response: The larger intake valves enable the engine to breathe better, resulting in improved throttle response and faster acceleration.

4. Longevity: Manley Performance valves are designed to last longer than stock valves, reducing the need for frequent replacements.

1. Cost: Aftermarket intake valves, such as the Manley Performance 12350-8, are more expensive than stock valves.

2. Installation Complexity: Installing aftermarket intake valves requires more time and expertise than installing stock valves.

3. Potential Compatibility Issues: It's essential to ensure that the Manley Performance intake valves are compatible with your particular engine build and other components.

Manley Performance intake valves offer several advantages, including enhanced performance, durability, improved engine response, and longevity. However, they come with a higher cost, installation complexity, and potential compatibility issues that need to be considered. Ultimately, the decision to purchase these valves depends on your specific needs, budget, and technical capabilities.

If you're looking to build a high-performance Chevy LS3/L99 engine and are willing to invest in premium components, Manley Performance intake valves can be an excellent choice. However, if you're on a tight budget or not confident in your installation abilities, you might want to consider stock or OEM valves instead. It's essential to do your research and consult with a knowledgeable mechanic or engine builder before making a decision.

Details:

Manley Chevy Small Block LS3/L99 L92 Head 2.165in Head Diameter Race Flo Intake Valves Set of 8 Features: XH-426 Stainless Exhaust Material NK-842 Chrome Stems and Hard Tips Swirl Polished Machined Intakes are Pro for Improved Flow.E. Actual product may vary. For listings with free shipping, it only applies within the continental 48 states.

part #: 123508 prices

• $21.99-$325.00

specifications voomvalve:

• for models: Ls3
• for makes: Chevy
• brand: Manley Performance
• mpn: 12350-8
• type: Valves
• fitment type: Performance/custom

returns voomvalve:

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

shipping voomvalve:

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

seller voomvalve:

• rating: 98.3%
• # reviews: 65927
• city: Wrightstown, Wisconsin

offer voomvalve:

• availability: In Stock
• quantity: 1
• sold: 0
• started: August 27, 2025
• options: Ship-to-home

general voomvalve:

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

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• wallet: Paypal
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