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  3. MANLEY 11231-1

MANLEY 11231-1 Engine Exhaust Valve 807298048000

11231-1 Manley - Engine Exhaust Valve

( Brand: Manley ), ( Manufacturer Part Number: 11231-1 ), ( Type: Exhaust ), ( Features: Ul Li Proven Fatigue Tests, Valves Experience 20, 000 To 25, 000 Lbs Of Applied Stress. When Valves Bounce On The Seat, This Stress Soars To 40, 000 To 60, 000 Lbs. Manley Exhaust Valves, Tested At 40, 000 Psi And 1400 F, Impressively Endured Up To 100, 000 ), ( 000: One Hundred Million Cycles. In Contrast, Competitors Offerings Failed After Just 100, 000 Cycles, Showcasing A Staggering 1000 Times Better Fatigue Life. /li Li, Nk-844, Is Equally Unmatched, Displaying Over Four Times The Ultimate Tensile Strength Of The C ), ( UPC: 807298048000 )

Review MANLEY Engine Exhaust Valve

The Manley 11231-1 Engine Exhaust Valve is a high-performance replacement valve designed for serious engine builders and racing enthusiasts. This valve is specifically engineered to deliver superior durability, reliability, and performance in high-stress, high-heat applications.

The valve body is made from Manley's proprietary 356 aluminum alloy, which provides excellent strength and heat resistance. The valve seat is precision-machined from Manley's patented stainless steel alloy, ensuring a perfect seal and long-lasting performance. The valve stem is made from high-strength, heat-treated steel, and the valve spring is made from high-tensile steel wire.

The Manley 11231-1 Engine Exhaust Valve features a large 2.065-inch (52.44mm) bore size and a 1.575-inch (39.99mm) stem length, making it suitable for larger engines and high-performance applications. The valve also comes with a titanium retainers and stainless steel spring locks for added strength and durability.

The valve's stem is finished with a corrosion-resistant chrome plating for added protection against the elements, while the valve head is finished with a polished stainless steel finish for a professional appearance. The valve also comes with a set of valve guides and seats to ensure a proper installation.

The Manley 11231-1 Engine Exhaust Valve is designed to meet the demands of high-performance engines, delivering superior flow, durability, and reliability. It is suitable for use in race engines, high-performance street engines, and other applications where maximum power and performance are required. With its high-quality materials, precise engineering, and attention to detail, the Manley 11231-1 Engine Exhaust Valve is the ideal choice for serious engine builders and racing enthusiasts.

Manley 11231-1 Engine Exhaust Valve: A Detailed Analysis

The Manley 11231-1 engine exhaust valve is a popular aftermarket option among engine builders and automotive enthusiasts. This valve is known for its high-performance capabilities and durability. In this analysis, we will discuss the pros and cons of purchasing a Manley 11231-1 engine exhaust valve.

Pros:

1. High-Performance: The Manley 11231-1 engine exhaust valve is designed to provide superior performance compared to OEM valves. It is made from high-quality materials, including stainless steel, which ensures excellent heat resistance and durability.

2. Enhanced Flow: The Manley exhaust valve offers enhanced flow, allowing for better exhaust gas evacuation from the engine cylinders. This results in improved engine performance and efficiency.

3. Improved Throttle Response: The improved exhaust flow from the Manley exhaust valve leads to quicker throttle response, making the engine more responsive and agile.

4. Durability: The Manley exhaust valve is designed to withstand the rigors of high-performance applications. Its robust construction ensures long-lasting performance, making it an excellent investment for engine builders and enthusiasts.

5. Customizable: The Manley 11231-1 engine exhaust valve is available in various sizes and configurations, allowing users to customize their engine build to meet their specific requirements.

Cons:

1. Cost: The Manley 11231-1 engine exhaust valve is more expensive than OEM valves. Its high-performance capabilities and durability come at a premium price, which may deter some buyers.

2. Installation Complexity: Installing the Manley exhaust valve can be a complex process, especially for those who are not experienced in engine building. It may require specialized tools and knowledge.

3. Potential Clearance Issues: The Manley exhaust valve may have clearance issues with some engine configurations, potentially requiring modifications to the engine or exhaust system.

4. Loud Exhaust: The Manley exhaust valve's improved performance and flow may result in a louder exhaust note, which some users may find objectionable.

Conclusion:

The Manley 11231-1 engine exhaust valve is an excellent investment for engine builders and automotive enthusiasts who seek superior performance and durability. Its high-quality construction, enhanced flow, and improved throttle response make it an attractive option for those who demand the best from their engines. However, its cost, installation complexity, potential clearance issues, and loud exhaust note may deter some buyers. Ultimately, the decision to purchase the Manley exhaust valve depends on an individual's priorities, budget, and engine build goals.

Recommendation:

If you are an engine builder or automotive enthusiast who values high-performance and durability, the Manley 11231-1 engine exhaust valve is an excellent choice. Its superior capabilities make it an investment that can provide long-lasting benefits to your engine build. However, it is essential to consider the potential cons, such as cost, installation complexity, and clearance issues, before making a purchase. If these factors are deal-breakers, alternative options may be more suitable for your needs.

Details:

Head Style: Dish. Type: Exhaust. Valve Head Diameter in: 1.600 in. Their product line-up includes valve train components, pistons, rings, connecting rods, and crank shafts for everything from late model V8s to sport compacts.Product Line: Severe Duty.

Manley 11231-1 - Engine Exhaust Valve. Finish: Swirl Polish. Proven Fatigue Tests: The Severe Duty.

Valve length in: 5.040 in. Quantity: Each. Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow efficiency. Color: Natural.

Chrome Stems and Hard Tips: Incorporating chrome stems hard tips for enhanced durability longevity. Valves have undergone rigorous fatigue tests. Designed for High Temperature Gasoline Engines: Engineered superior performance in high-temperature gasoline engines. Material: Stainless.

part #: 112311 prices

  • $37.64-$56.63

specifications voomvalve:

  • brand: Manley
  • mpn: 11231-1
  • type: Exhaust
  • features: Ul Li Proven Fatigue Tests, Valves Experience 20, 000 To 25, 000 Lbs Of Applied Stress. When Valves Bounce On The Seat, This Stress Soars To 40, 000 To 60, 000 Lbs. Manley Exhaust Valves, Tested At 40, 000 Psi And 1400 F, Impressively Endured Up To 100, 000
  • 000: One Hundred Million Cycles. In Contrast, Competitors Offerings Failed After Just 100, 000 Cycles, Showcasing A Staggering 1000 Times Better Fatigue Life. /li Li, Nk-844, Is Equally Unmatched, Displaying Over Four Times The Ultimate Tensile Strength Of The C
  • upc: 807298048000

returns voomvalve:

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

offer voomvalve:

  • options: Ship-to-home
  • sold: 0
  • quantity: 2
  • availability: In Stock
  • started: April 12, 2025

shipping voomvalve:

  • class: Standard
  • type: Fixed
  • cost: $0.00
  • transit: 4-7 Days
  • service: Standard

general voomvalve:

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

seller voomvalve:

  • city: Saint Paul, Minnesota
  • # reviews: 44964
  • rating: 97.3%

payments voomvalve:

  • credit card: Visa
  • wallet: Google-pay
  • other
type: exhaust, features: ul li proven fatigue tests, valves experience 20, 000 to 25, 000 lbs of applied stress. when valves bounce on the seat, this stress soars to 40, 000 to 60, 000 lbs. manley exhaust valves, tested at 40, 000 psi and 1400 f, impressively endured up to 100, 000, 000: one hundred million cycles. in contrast, competitors offerings failed after just 100, 000 cycles, showcasing a staggering 1000 times better fatigue life. /li li, nk-844, is equally unmatched, displaying over four times the ultimate tensile strength of the c,
category: auto parts > engines engine parts > valvetrain components > valves, sku: 5946648942050632,

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5 offers $37.64–$56.63 USD
  • Offer #1: $56.63 price + $0.00 shipping estimate = $56.63* total. Exhaust Valve - Severe Duty - 1.600 in Head - 0.311 in Valve Stem - 5.040 in Long - Stainless - Small Block Chevy - Each.FREE SHIPPING
  • Offer #2: $53.21 price + $0.00 shipping estimate = $53.21* total. These products are available for everything from late model V8 s to sport compacts. Manufacturer: Manley Performance Products.FREE SHIPPING
  • Offer #3: $37.64 price + $15.99 shipping estimate = $53.63* total. Manley Severe Duty Exhaust Valve Small Block Chevy.+$15.99 shipping
  • Offer #4: $42.24 price + $12.99 shipping estimate = $55.23* total. Each valve features chrome stems, hard tips, and swirl-polished underheads with fully machined combustion faces for superior airflow, efficiency, and wear resistance. Manley Valve - Exhaust, Valve-S/D 1.600,+.100 Manley Severe Duty Valves deliver the ultimate in strength, reliability, and high-performance durability.+$12.99 shipping
  • Offer #5: $54.55 price + $0.00 shipping estimate = $54.55* total. Proven Fatigue Tests: The Severe Duty Valves have undergone rigorous fatigue tests. Manley Engine Exhaust Valve.FREE SHIPPING

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