MANLEY 11749-8 Engine Exhaust Valve 807298051963

( Brand: Manley ), ( Manufacturer Part Number: 11749-8 ), ( 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: 807298051963 )

Review MANLEY Engine Exhaust Valve

The Manley 11749-8 Engine Exhaust Valve is a high-performance aftermarket replacement designed for racers and high-performance enthusiasts seeking improved engine durability and power. This valve is specifically engineered for use in high-revving, high-compression, and high-output engines where the stock valves may not withstand the increased demands.

This Manley exhaust valve is made from premium grade 316 stainless steel, ensuring superior strength, durability, and resistance to corrosion. The valve head features a fully machined and polished finish, while the stem is precision-machined to ensure a perfect fit in the engine head. The valve seats are also made from stainless steel and are lapped to ensure a leak-free seal.

The Manley 11749-8 exhaust valve is designed to operate at higher temperatures and pressures than stock valves, making it ideal for high-performance engines. The valve also features a larger diameter stem and improved stem seal design to reduce the risk of valve float and improve engine efficiency.

The valve springs included with this kit are made from high-tensile steel and are designed to provide the necessary force to keep the valve sealed at high engine speeds and pressures. The valve retainers are made from durable titanium, reducing weight and improving valvetrain response.

Installation of the Manley 11749-8 engine exhaust valve is relatively straightforward and can be accomplished with common hand tools. The kit includes all necessary hardware, including valve springs, retainers, and stem seals.

In summary, the Manley 11749-8 Engine Exhaust Valve is a high-quality, high-performance replacement valve designed for high-revving, high-compression, and high-output engines. Made from premium materials and engineered for improved strength, durability, and efficiency, this valve is a must-have for any serious racer or performance enthusiast.

The Manley 11749-8 engine exhaust valve is a popular aftermarket option for those seeking improved performance and durability in their engines. Here are some pros and cons to consider before making a purchase:

1. Enhanced Performance: Manley exhaust valves are designed to provide better flow and reduce restriction, ultimately leading to improved engine performance.

2. Durability: Manley valves are made from high-quality materials, such as stainless steel, and undergo a rigorous manufacturing process to ensure they can withstand high temperatures and pressures.

3. Increased Longevity: Replacing your original exhaust valves with Manley aftermarket valves can help extend the life of your engine by reducing the likelihood of valve failure.

1. Cost: Manley exhaust valves can be more expensive than OEM (original equipment manufacturer) valves.

2. Installation: Installing aftermarket exhaust valves can require specialized tools and expertise, which may add to the overall cost and time investment.

3. Potential for Noise: Some users have reported an increase in engine noise after installing aftermarket exhaust valves, although this can depend on individual engine configurations and personal preferences.

The Manley 11749-8 engine exhaust valve offers several advantages for those seeking improved engine performance and durability. However, it comes with a higher cost and potential for increased noise compared to OEM valves. Ultimately, the decision to purchase Manley exhaust valves depends on your priorities, budget, and technical expertise.

If you're an enthusiast looking to maximize your engine's performance and longevity, the Manley 11749-8 engine exhaust valve may be a worthwhile investment. However, if you're on a tight budget or prefer a quieter engine, you may want to consider OEM valves or other aftermarket options with a lower price point. Regardless of your choice, ensure that proper installation is carried out by a qualified mechanic or yourself with the necessary expertise.

Details:

Material: Stainless. Type: Exhaust. Manley 11749-8 - Engine Exhaust Valve. Valves have undergone rigorous fatigue tests.

Proven Fatigue Tests: The Severe Duty. Color: Natural. Valve length in: 5.065 in. 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. Chrome Stems and Hard Tips: Incorporating chrome stems hard tips for enhanced durability longevity. Designed for High Temperature Gasoline Engines: Engineered superior performance in high-temperature gasoline engines.

Optimized Combustion: Swirl polished under head areas and fully machined combustion faces for improved airflow efficiency. Head Style: Dish. Finish: Swirl Polish.

part #: 117498 prices

• $301.07-$393.22

specifications voomvalve:

• brand: Manley
• mpn: 11749-8
• 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: 807298051963

seller voomvalve:

• city: Saint Paul, Minnesota
• # reviews: 45083
• rating: 96.4%

offer voomvalve:

• started: September 3, 2025
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 4

returns voomvalve:

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

shipping voomvalve:

• class: Standard
• cost: $0.00
• transit: 2-5 Days
• type: Fixed
• service: Standard

payments voomvalve:

• wallet: Paypal
• credit card: Diners-club
• other

general voomvalve:

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

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