MANLEY 11511-8 Severe Exhaust Valves 807298049267

( Brand: Manley ), ( Manufacturer Part Number: 11511-8 ), ( Part Type: Valve Exhaust ), ( UPC: 807298049267 )

Review MANLEY Severe Duty Exhaust Valves

Introducing the Manley 11511-8 Severe Duty Exhaust Valves, a high-performance solution for those seeking ultimate durability and reliability in their racing or high-performance engines. These valves are specifically designed to withstand the extreme conditions encountered in high-RPM and high-boost applications.

The Manley Severe Duty Exhaust Valves are constructed using a unique combination of materials. The valve stems are made from high-strength stainless steel, providing excellent fatigue resistance and durability. The valve heads are crafted from Manley's proprietary 356 aluminum alloy, known for its exceptional strength and heat resistance. This combination of materials ensures that the valves can withstand the extreme temperatures and pressures encountered in high-performance applications.

These valves feature a large 2.325-inch (59.0mm) diameter, which provides excellent flow characteristics for maximum power output. The valve seats are precision-machined from Manley's proprietary 356 aluminum alloy, ensuring a perfect seal and minimizing the risk of valve seat recession. The valves also come with titanium retainers, which offer superior strength and weight savings compared to traditional steel retainers.

The Manley 11511-8 Severe Duty Exhaust Valves are designed to be used in racing and high-performance applications where durability and reliability are paramount. They are suitable for use with unleaded and leaded racing fuels, making them a versatile choice for a wide range of applications. These valves are available in both intake and exhaust configurations and are suitable for use in both naturally aspirated and forced-induction engines.

In summary, the Manley 11511-8 Severe Duty Exhaust Valves are a high-performance solution for those seeking ultimate durability and reliability in their racing or high-performance engines. Their unique design, using a combination of high-strength stainless steel and Manley's proprietary 356 aluminum alloy, ensures excellent fatigue resistance, durability, and heat resistance. With their large diameter, precision-machined valve seats, and titanium retainers, these valves offer optimal flow characteristics, a perfect seal, and superior strength.

Manley 11511-8 Severe Duty Exhaust Valves are aftermarket valves designed for high-performance applications. These valves offer several benefits, but like any automotive component, they come with their pros and cons.

1. Enhanced Performance: Manley Severe Duty Exhaust Valves provide improved exhaust flow, leading to enhanced engine performance. They are suitable for high-performance applications where stock valves may not be able to handle the increased exhaust gases.

2. Durability: These valves are constructed using high-quality materials, such as stainless steel and titanium, ensuring long-lasting performance. They are designed to withstand the rigors of high-performance driving and racing.

3. Improved Thermal Efficiency: Manley Severe Duty Exhaust Valves help improve thermal efficiency by reducing exhaust gas backpressure. This results in better fuel efficiency and increased power output.

1. Cost: Manley Severe Duty Exhaust Valves are more expensive than OEM (original equipment manufacturer) valves. The cost may be a significant deterrent for some enthusiasts or budget-conscious builders.

2. Installation Complexity: Installing aftermarket exhaust valves can be a complex process, requiring specialized tools and expertise. It may be necessary to remove the cylinder head to access the valves, adding to the overall installation time and cost.

3. Potential for Leaks: There is a risk of exhaust leaks when installing aftermarket valves, especially if they are not properly installed or sealed. Leaks can cause a decrease in performance and potential safety hazards.

Manley 11511-8 Severe Duty Exhaust Valves offer significant performance benefits, including enhanced power output, improved thermal efficiency, and increased durability. However, they come with a higher cost, installation complexity, and the risk of exhaust leaks.

If you are building a high-performance engine or racing application, Manley Severe Duty Exhaust Valves are an excellent investment. Their superior materials and design offer long-lasting performance and significant power gains. However, if you are working on a budget or are not ready for the installation complexity, you may want to consider other options or wait until you have the necessary resources to make the upgrade.

Details:

American Express.

part #: 115118 price

• $460.62

specifications voomvalve:

• brand: Manley
• mpn: 11511-8
• part type: Valve Exhaust
• upc: 807298049267

returns voomvalve:

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

offer voomvalve:

• quantity: 4
• started: December 17, 2025
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping voomvalve:

• cost: $0.00
• type: Fixed
• transit: 3-9 Days
• service: Standard
• class: Standard

seller voomvalve:

• rating: 98.8%
• # reviews: 609352
• city: , Ohio

general voomvalve:

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

payments voomvalve:

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

Manley 11511-8 Is Similar To:

• Manley 11782-8 Sbm R m 2.020in Intake Valves (54.1% similar) Swirl polished and fully machined: the valves feature swirl polished under head areas fully machined combustion faces to optimize airflow efficiency. Material: stainless. Chrome stems and hard tips: stems hard tips are incorporated for enhanced longevity wear resistance. Type: intake...(July 12th, 2024)
• Manley Performance 10728-8 6 Street Master Flo 2.190ftft Intake Valves For Bb Chevy (41.9% similar) Missing 2 of the valves. Manley 10728-8 street master Flo 2.190'' intake valves for BB Chevy, opened box...(July 22nd, 2024)
• Manley 11834-1 Severe Duty Valve (76.7% similar) American express...(August 15th, 2024)
• Manley 11591-8 Valve Exhaust Valve-fd Svo 1.880 (68.9% similar) Today, Manley manufactures crankshafts, connecting rods, pistons, push rods, rocker arms, valve springs, lash caps, guide plates, and many other oem high performance components. About the brand: Manley performance products have been tearing up streets and tracks worldwide since 1966 . Unleash your...(August 18th, 2024)
• Manley Performance 11621-8 For Chevy Ls-3 l-99 L-92 Head Small Block Race Master Exhaust Valves (50% similar) Since that time Manley has continued to evolve, using the knowledge they have gained since beginning and building on continue bring best engine components market...(August 26th, 2024)
• Manley A861-2 2 A861 Exhaust Engine Valve For Continental 124 140 162 209 (43.9% similar) They may have been in storage anywhere from 1-30 years. Or any other minor issue that does not make the part you are buying defective. Once purchased you own it. If any manufacturer warranty exists, it is between you and them. These items, although new, are not always crispy clean like...(August 28th, 2024)
• Manley A1585-4 4 A1585 Engine Exhaust Valve For 1965-1983 Ford 170 200 250-l6 (44.1% similar) 170, 2/2 50 6CYL. Sometimes the fitment is so old that it does not take into account trim, engine size or build dates. Ford, ford trek. They may have been in storage anywhere from 1-30 years. Manley part number A1585-4. If any manufacturer warranty exists, it is between you and them...(August 28th, 2024)
• Manley 42125-8 Standard Wear Caps For 0.3130 Inch 8mm Stem Valves (44.4% similar) Manley standard wear caps for 0.3130 - 8MM stem valves 42125-8,: caps: thru-hardened 4140 alloy steel: special heat treatment to HR 50-54: specifications...(August 28th, 2024)
• Manley Performance 42139-8 Standard 310 Inch Stem Valves 7.87mm Wear Caps 8 Pack (36.1% similar) Manley valve tip wear caps protect the of your stem in high-rpm engines. Stem DIAMETER.080 in. They are constructed from 4140 heat-treated alloy steel, strong enough to handle harsh racing conditions. Thick, standard type, set of 8, Manley .310IN stem valves 7.87MM wear caps 8 PCs, features...(August 28th, 2024)
• Manley 10577-1 Budget Performance Exhaust Valve (65.9% similar) American express...(September 2nd, 2024)
• Manley 11365-8 Domestic Race Series Exhaust Valve Set (62.5% similar) Chrome stems and hard tips: stems hard tips are incorporated for enhanced longevity wear resistance. Six years later, hank Manley unveiled its first line of top-of-the-line performance parts, which included stainless valves, forged pistons, camshafts, lifters, vanadium valve springs, push rods...(September 6th, 2024)