MANLEY 11717-8 Exhaust Valve R/m 1.880

( Brand: Manley ), ( Manufacturer Part Number: 11717-8 ), ( Part Type: Valve Exhaust )

Review MANLEY Exhaust Valve Bbc R/m 1.880

The Manley 11717-8 Exhaust Valve is a high-performance replacement exhaust valve specifically designed for BBC (Big Block Chevy) R/M (Ram's Horn) engines with a 1.880 inch (47.74 mm) exhaust valve stem diameter. This valve is a crucial component of the exhaust system, responsible for efficiently releasing exhaust gases from the combustion chamber.

Manley, known for its engineering excellence and commitment to performance, has crafted this exhaust valve with meticulous precision. Its design boasts a larger 310cc intake and 122cc exhaust valve, allowing for increased flow rates compared to stock valves. The valve's increased flow capacity aids in optimizing engine performance, resulting in even better power and torque output.

Constructed from heat-treated stainless steel, this valve enhances durability against the harsh conditions within the engine cylinder. Pairing this material with the precise machining processes ensures that the valve's sealing surface is flat and true, reducing the risk of leaks and exhaust gases escaping prematurely. The seats, made from velvet-faced nickel alloy, provide a superior seal to the valve, further enriching the engine's efficiency and reducing emissions.

The Manley 11717-8 Exhaust Valve features a quartersphere shape. This unique shape has been thoughtfully designed to create a broader valve lift, providing substantial gains in exhaust flow and performance. The valve's spherical shape offers a more optimal flow path for exhaust gases, reducing back-pressure build-up and ensuring a more linear power delivery.

In summary, the Manley 11717-8 Exhaust Valve is a high-performance aftermarket replacement valve, specifically designed for BBC R/M engines with a 1.880 inch (47.74 mm) exhaust valve stem diameter. By featuring a larger valve design, heat-treated stainless steel construction, precise machining, and effective quartersphere shape, this exhaust valve optimizes engine performance while enhancing durability to race-winning standards.

Manley 11717-8 Exhaust Valve for BBC R/M 1.880: A Thorough Analysis

The Manley 11717-8 exhaust valve is a popular aftermarket option for BBC (B baseline engine, Chevrolet) R/M (Roadrunner, Monte Carlo, Malibu, El Camino, and Nova) vehicles. This valve is designed to provide improved performance and durability. I will be discussing the key features, advantages, and disadvantages of this exhaust valve, culminating in a recommendation for potential buyers.

1. Material: The Manley 11717-8 is made from high-strength, copper aluminum alloy, which enhances heat dissipation and durability.

2. Design: The exhaust valve features an oversized, soft-seated design, reducing the risk of failure due to excessive pressure andCommonly decarbonizes the exhaust ports, improving engine performance.

3. Compatibility: Compatible with BBC engines ranging from 1970 to 1981, and various R/M models.

1. Enhanced Performance: The oversized design of the valve increases exhaust gas flow, reducing backpressure and providing an overall improvement in engine performance.

2. Increased Durability: The high-strength material and design reduce the likelihood of valve failure, making it a valuable investment for high-performance applications.

3. Improved Longevity: These exhaust valves typically outlast their stock counterparts, saving potential repair costs and headaches down the road.

1. Cost: Manley exhaust valves are generally more expensive than their stock counterparts but offer better performance and durability.

2. Installation: Installing aftermarket exhaust valves requires specific tools and expertise, potentially incurring additional costs for labor and equipment.

3. Loudness: Depending on the exhaust system setup, upgrading to high-performance exhaust valves can result in increased engine noise, which may be an unwanted side effect for some owners.

The Manley 11717-8 exhaust valve presents several advantages for BBC R/M vehicle owners, such as improved engine performance, increased durability, and extended longevity. On the downside, it comes with a higher cost compared to stock exhaust valves and may require professional installation.

After careful consideration, I would recommend the Manley 11717-8 exhaust valve for any BBC R/M owner looking to optimize engine performance and minimize the risk of failure in high-performance applications. While the initial investment is significant, the potential savings in repair costs and engine improvements outweigh the upfront cost for many enthusiasts. Ultimately, choosing this exhaust valve comes down to a personal balance of performance enhancements, longevity, and budget considerations.

Details:

Items must be New, Unused, Not Installed, in the Original Packaging and able to resold. Condition: New. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States. Manley Valve - Exhaust, Valve-BBC R/M 1.880 Manley?Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers ultimate choice for engines operating under 8000 RPM.

MPN: 11717-8. Brand: Manley.

part #: 117178 prices

• $199.95-$260.00

specifications voomvalve:

• brand: Manley
• mpn: 11717-8
• part type: Valve Exhaust

offer voomvalve:

• sold: 0
• quantity: 1
• availability: In Stock
• started: January 2, 2025
• options: Ship-to-home

returns voomvalve:

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

general voomvalve:

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

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• other
• credit card: Mastercard
• wallet: Google-pay

seller voomvalve:

• city: Grant, Michigan
• # reviews: 154382
• rating: 98.3%

shipping voomvalve:

• class: Expedited
• service: Expedited
• transit: 4-8 Days
• type: Fixed
• cost: $0.00

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