MANLEY 11687-1 Extreme Exhaust Valve Stem 099998725521 1.610 8MM 0.3136

( Brand: Manley ), ( Manufacturer Part Number: 11687-1 ), ( Part Type: Valve Exhaust ), ( UPC: 099998725521 )

Review MANLEY Extreme Duty Exhaust Valve 1.610 Diameter 8mm Stem fits LS7 610

The Manley 11687-1 Extreme Exhaust Valve is a high-performance aftermarket exhaust valve designed for use in LS7 engines. This valve is specifically engineered for applications where increased durability, flow, and efficiency are essential.

The valve body is made from 356 aluminum alloy, a material known for its excellent heat conductivity and resistance to thermal fatigue. The valve seat is precision machined from stainless steel to ensure a perfect seal and optimal flow. The valve stem measures 8mm in diameter and 1.610 inches in length, with a stem diameter at the seat of 0.3136 inches.

The valve is equipped with a 1.650-inch diameter, 0.165-inch thick, sodium-filled exhaust valve head. Sodium filling is a process that adds a layer of sodium to the valve head, which improves heat transfer and reduces the risk of valve head failure under high temperatures. The valve also features a 5-angle valve job, which optimizes the flow of exhaust gases for improved power and efficiency.

The Manley 11687-1 Extreme Exhaust Valve is designed to withstand the extreme conditions of high-performance applications. The valve is rated for temperatures up to 1200 F and pressures up to 350 psi. The valve also features a reinforced stem design, which provides increased strength and durability.

The valve comes with a new valve guide and retainer, ensuring a perfect fit and reliable operation. The valve also includes a new spring and keepers, which provide the proper spring pressure and retain the valve in the correct position. The valve is suitable for use with aftermarket camshafts and lifters.

In summary, the Manley 11687-1 Extreme Exhaust Valve is a high-performance aftermarket exhaust valve designed for use in LS7 engines. It is made from high-quality materials, features sodium filling, and is designed to withstand extreme temperatures and pressures. The valve includes new valve guide, retainer, spring, and keepers, ensuring reliable operation and optimal performance.

The Manley 11687-1 Extreme Exhaust Valve is a high-performance aftermarket exhaust valve designed for the LS7 engine. This valve is known for its superior durability, improved flow, and increased lift capacity. Here are some pros and cons to consider before making a purchase:

1. Enhanced Durability: Manley valves are made from high-quality materials, including stainless steel stems and hardened seats. This results in increased durability and longer lifespan compared to OEM valves.

2. Improved Airflow: The Manley Extreme Exhaust Valve offers improved airflow due to its larger diameter and increased lift capacity. This can help increase engine performance and power output.

3. Precision Manufacturing: Manley valves are manufactured using precise machining techniques, ensuring accurate dimensions and a proper fit.

4. Racing Application: The Manley Extreme Exhaust Valve is designed for racing applications and high-performance use, making it an excellent choice for those looking to maximize engine output.

1. Cost: Aftermarket performance valves like the Manley Extreme Exhaust Valve can be more expensive than OEM valves. This may be a consideration for those on a budget.

2. Installation Complexity: Installing aftermarket exhaust valves can be a more complex process than swapping out OEM valves. It may require specialized tools and knowledge.

3. Potential Noise: The increased lift capacity of the Manley Extreme Exhaust Valve can result in increased noise levels. This may be a concern for those who prioritize a quieter driving experience.

The Manley 11687-1 Extreme Exhaust Valve is a high-performance aftermarket exhaust valve that offers increased durability, improved airflow, and precision manufacturing. However, it comes with a higher cost, installation complexity, and potential noise levels. Ultimately, the decision to purchase this valve depends on your specific needs, budget, and performance goals. If you're looking to maximize engine output and durability for a racing application, the Manley Extreme Exhaust Valve is a great choice. However, if you're on a budget or prioritize a quieter driving experience, you may want to consider other options.

If you're considering purchasing the Manley 11687-1 Extreme Exhaust Valve, it's important to weigh the pros and cons carefully and ensure that it aligns with your specific needs and budget. If you're looking for a high-performance aftermarket exhaust valve for a racing application, this valve is an excellent choice. However, if you're on a budget or prioritize a quieter driving experience, you may want to consider other options or look for a less expensive aftermarket valve. It's also recommended to consult with a professional mechanic or engine builder to ensure proper installation and to get the most out of your new exhaust valve.

Details:

American Express.

part #: 116871 prices

• $202.55-$301.07

specifications voomvalve:

• for models: Ls7, 610
• brand: Manley
• mpn: 11687-1
• part type: Valve Exhaust
• upc: 099998725521

seller voomvalve:

• city: , Ohio
• rating: 99.1%
• # reviews: 615849

general voomvalve:

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

offer voomvalve:

• quantity: 10
• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: February 10, 2026

payments voomvalve:

• credit card: Visa
• other
• wallet: Paypal

returns voomvalve:

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

shipping voomvalve:

• class: Standard
• service: Standard
• type: Fixed
• cost: $15.99
• transit: 4-9 Days

Manley 11687-1 Is Similar To:

• Pac Racing Pac-1280x 1.282 Od Beehive Valve Springs Manley Crower Psi (29% similar) Here is a used set of 16 PAC racing beehive valve springs. Will combine shipping with multiple items. Meets specs with more rpm and endurance. Retainers included: no outside diameter of outer spring in.: 1.282 IN./1.077 in. Brand: manufacturers part number: PAC-1280X-16 type: valve...(May 23rd, 2024)
• Manley 221424-16 Nextek 1.640 Drag Race Valve Springs Used Excellent Condition (33.8% similar) Of brand new springs, measuring 240 lbs. This item is a complete set of lightly used Manley race springs for solid roller cam. Here are the details:.d. Of outer dia. I have checked each spring on my iMac tester and they are within 3 - 4 lbs. These springs are virtually new and have...(June 24th, 2024)
• Manley 221443-16 16 Dual Valve Springs 1.580 Inch O.d Part 221443-16 Nascar (44.4% similar) Part #: Manley 221443-16 for sale...(July 12th, 2024)
• Manley 13195-16 10 Valve Locks (40.7% similar) Manley 13195-16 - 10 valve locks. Made from high-quality materials for ultimate durability. Manufactured to meet or exceed strict quality requirements. Soon, the brand was awarded highest supplier rating by ford. The brand was born from the extreme passion of its founder, hank Manley...(August 12th, 2024)
• Manley 11834-1 Severe Duty Valve (48.1% similar) American express...(August 15th, 2024)
• Manley Performance 42142-16 1.250 Inch Valve Spring Cups And Locators Set Of 16 (33.5% similar) Manley valve spring cups and locators protect your expensive aluminum heads from being galled by high-pressure springs. They are quality-machined to a .062 in. Thickness from heat-treated steel with a corrosion-resistant black oxide finish. Manley valve spring cups and locators are available in...(August 15th, 2024)
• Manley 11864-1 Race Master Intake Valve (41.7% similar) American express...(August 17th, 2024)
• Manley 11310-8 Valve Intake Valve-409 R m 2.200 Engine (39.4% 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 17th, 2024)
• Manley 11591-8 Valve Exhaust Valve-fd Svo 1.880 (52.8% 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 13161-8 Valve Locks (39.2% similar) Bead lock groove type. Manley 13161-8 valve locks: specifications: condition: new. Lock material.: .050 installed height . Recessed for lash cap. Hardened steel. Manufacturing process. Lock groove quantity. Valve stem diameter. Manufacturer part #: 13161-8...(August 19th, 2024)
• Manley 13361-8 7 Degree Valve Locks Bead-loc Style (45.3% similar) Groove style: bead lock. Manley 7 degree valve locks - bead-lock 13361-8. Valve stem size: 11/32 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: lock cap...(August 20th, 2024)