MANLEY 11681-1 Extreme Exhaust Valve 1.575 8MM

( Brand: Manley ), ( Manufacturer Part Number: 11681-1 ), ( Part Type: Valve Exhaust )

Review MANLEY Extreme Duty Exhaust Valve 1.575 Diameter 8mm fits LS1 LS2 LS6 575

Introducing the Manley 11681-1 Extreme Exhaust Valve, a high-performance aftermarket solution designed specifically for LS1, LS2, and LS6 engines. This valve boasts a 1.575-inch (39.98mm) intake diameter and an 8mm (0.315-inch) exhaust diameter, making it an excellent choice for engine builds seeking enhanced power and durability.

The Manley Extreme Exhaust Valve is meticulously crafted using only the finest materials. The valve body is forged from 356 Aluminum alloy, which ensures superior strength and resistance to thermal fatigue. Additionally, the valve seat is precision-machined from stainless steel to deliver a perfect seal, even under the most demanding conditions.

This exhaust valve is engineered to maximize airflow, allowing for increased engine breathing and optimal combustion efficiency. Its heavy-duty design guarantees reliable operation under the rigors of high RPM and high-horsepower applications. Moreover, the Manley Extreme Exhaust Valve is compatible with both stock and aftermarket camshafts, providing unparalleled flexibility for engine builders.

Manley's commitment to excellence is evident in every detail of the Extreme Exhaust Valve. Each valve undergoes rigorous testing to ensure it meets the highest standards of quality and performance. With the Manley 11681-1 Extreme Exhaust Valve, you can trust that you're installing a component that delivers unmatched reliability, power, and efficiency for your LS1, LS2, or LS6 engine.

Manley 11681-1 Extreme Exhaust Valves are aftermarket exhaust valves designed for use in LS1, LS2, and LS6 engines with a 1.575-inch (40mm) stroke and 8mm stem diameter. These valves are known for their high-performance capabilities and durability. Here are some pros and cons of buying these valves:

1. Enhanced Performance: Manley Extreme Exhaust Valves offer improved flow and reduced restriction compared to stock valves. This results in increased horsepower and torque.

2. Durability: These valves are made from high-quality materials, including titanium valve stems and sodium-filled exhaust valves. They are designed to withstand high temperatures and extreme conditions, making them ideal for high-performance applications.

3. Customization: Aftermarket exhaust valves like the Manley Extreme Exhaust Valves offer the opportunity for customization. You can choose from different materials, sizes, and designs to meet your specific engine requirements.

4. Improved Throttle Response: By reducing restriction and improving flow, Manley Extreme Exhaust Valves can help improve throttle response and make your engine more responsive.

1. Cost: Aftermarket exhaust valves like the Manley Extreme Exhaust Valves can be more expensive than stock valves. The cost may be a consideration for some buyers.

2. Installation: Installing aftermarket exhaust valves can be a complex process that requires specialized tools and knowledge. It may be necessary to hire a professional mechanic to install the valves.

3. Compatibility: Make sure that the Manley Extreme Exhaust Valves are compatible with your specific engine model and configuration before purchasing.

Manley Extreme Exhaust Valves offer several advantages for high-performance applications, including improved flow, enhanced durability, customization options, and improved throttle response. However, they come with a higher cost and require specialized installation. If you are looking to maximize the performance of your LS1, LS2, or LS6 engine, Manley Extreme Exhaust Valves may be a worthwhile investment.

If you are considering purchasing Manley Extreme Exhaust Valves for your LS1, LS2, or LS6 engine, make sure to do your research and consult with a qualified mechanic to ensure compatibility and proper installation. The benefits of these high-performance exhaust valves can make a significant difference in the performance of your engine.

Details:

American Express.

specifications voomvalve:

• for models: Ls1, Ls2, Ls6, 575
• brand: Manley
• mpn: 11681-1
• part type: Valve Exhaust

returns voomvalve:

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

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• credit card: Discover

offer voomvalve:

• started: June 4, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 10

general voomvalve:

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

shipping voomvalve:

• class: Standard
• service: Standard
• type: Fixed
• transit: 3-7 Days
• cost: $15.99

seller voomvalve:

• city: , Ohio
• # reviews: 594713
• rating: 97.7%

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