- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engines & Engine Parts /
- Engine Parts /
- Valves & Parts /
- Valves /
- Exhaust Valves /
- Manley 11661-8 Severe Duty Exhaust Valve, Sta...
0 ratings
Item #:
8717846
Manley 11661-8 Severe Duty Exhaust Valve, Stainless Steel, Set of 8
Item #:
8717846
SCR 4547
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Friday, July 10
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Upgrade your engine's performance with our premium stainless steel exhaust valves, designed for severe duty applications.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Durable Material
Constructed from high-quality stainless steel, these valves ensure maximum durability and resistance to extreme conditions, enhancing engine performance and longevity over standard valves.
Severe Duty Design
Engineered for high-performance applications, these valves withstand intense heat and pressure, making them ideal for racing and heavy-duty engines that require reliable performance.
Complete Set
This set of 8 valves provides a comprehensive solution for engine rebuilds or upgrades, offering excellent value and convenience for enthusiasts and professionals seeking top-tier components.
Product Details
| Item Weight | 3 lbs (1.36 kg) |
Who Should Buy?
-
High-Performance Engines
Ideal for users building high-performance engines requiring enhanced durability and heat resistance in exhaust applications.
-
Racing Enthusiasts
Perfect for racing enthusiasts seeking superior exhaust efficiency and strength to withstand extreme conditions on the track.
-
Heavy-Duty Applications
Great choice for heavy-duty vehicles and machinery needing robust components to endure harsh operating environments.
-
Budget-Conscious Users
Not suitable for users looking for a low-cost option, as these valves cater to premium performance needs.
-
Standard Vehicles
Less appropriate for standard passenger vehicles where OEM parts exist, as performance benefits may be unnecessary.
-
DIY Hobbyists
May not be ideal for casual DIY users who lack experience with high-level engine modifications and performance needs.
Product Description
Manley 11661-8 Severe Duty Exhaust Valve, Stainless Steel, Set of 8
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the material of the Manley 11661-8 valves?
Answer: The Manley 11661-8 Severe Duty Exhaust Valves are made from high-quality stainless steel. This material choice is crucial as it offers superior resistance to heat and corrosion compared to traditional valve materials. Stainless steel valves are particularly beneficial for high-performance engines operating under extreme conditions, enhancing durability and longevity. For instance, if you’re tuning up your vehicle for racing or heavy-duty performance, these valves provide the reliability needed for sustained high-performance applications. -
Question:
What are the dimensions of the Manley 11661-8 exhaust valves?
Answer: The Manley 11661-8 exhaust valves typically feature a standard diameter suited for various high-performance engines. Their specific dimensions ensure a perfect fit in compatible cylinder heads, allowing for optimal air and exhaust flow. This design contributes to improved engine efficiency and horsepower. Car enthusiasts or mechanics looking to upgrade their engine's performance will find these valves ideal for enhancing overall engine functionality in performance-focused applications. -
Question:
How do these valves compare to OEM valves?
Answer: Manley 11661-8 Severe Duty Exhaust Valves are engineered for extreme conditions, making them a superior choice compared to standard OEM valves. While OEM valves might suffice for regular use, Manley’s valves are crafted for enhanced performance and durability, ideal for high-revving applications. This makes them particularly favorable for those who push their vehicles to the limit on the track or in off-road situations, providing both peace of mind and performance benefits that can significantly elevate driving experiences. -
Question:
Can I use the Manley 11661-8 valves in any engine?
Answer: The Manley 11661-8 valves are specifically designed for high-performance applications, making them ideal for modified and racing engines. They are not universally suitable for all engines, as compatibility depends on the engine type and modifications. It’s important to consult your engine specifications or a performance specialist to ensure these valves will work effectively with your specific setup. If you're upgrading a muscle car or a race vehicle, these valves can greatly enhance performance and reliability. -
Question:
What is the purpose of exhaust valves in an engine?
Answer: Exhaust valves play a critical role in the engine’s combustion cycle, controlling the release of exhaust gases after fuel combustion. They are responsible for ensuring that spent gases exit the combustion chamber efficiently, contributing to better engine performance. Efficient exhaust flow can lead to improved power output and fuel efficiency. By upgrading to high-performance valves like the Manley 11661-8, you can enhance this process, making it particularly beneficial for racing applications or performance vehicles that require optimized engine breathing. -
Question:
Are these valves suitable for turbocharged engines?
Answer: Yes, Manley 11661-8 Severe Duty exhaust valves are well-suited for turbocharged engines. Their construction is designed to handle the higher temperatures and pressures characteristic of turbo applications. Using these valves can prevent premature wear and failure in high-stress conditions, ensuring that your turbocharged engine operates efficiently. If you’re building or modifying a turbo engine, these valves provide the durability and performance needed for successful operation. -
Question:
What is the expected lifespan of these exhaust valves?
Answer: The lifespan of Manley 11661-8 Severe Duty exhaust valves generally exceeds that of standard valves, particularly in high-performance applications where they are routinely exposed to extreme conditions. Factors like engine setup, usage, and maintenance will influence longevity. Regular maintenance can significantly extend the life of these valves. For those regularly using their vehicles for racing or demanding performance, investing in these valves can lead to fewer replacements and more consistent performance over time. -
Question:
How do I install the Manley 11661-8 valves?
Answer: Installing Manley 11661-8 severe duty exhaust valves should ideally be performed by a professional or someone with automotive mechanical experience. Proper installation involves ensuring that the valve seats are in excellent condition and that the correct shimming and clearances are observed. This ensures optimal sealing and performance. For DIY enthusiasts, a service manual specific to your engine should guide the installation process. Correct installation is paramount for maximizing the performance benefits these valves offer. -
Question:
What vehicles are compatible with Manley 11661-8 exhaust valves?
Answer: Manley 11661-8 Severe Duty exhaust valves are compatible with specific high-performance vehicles, particularly those used in racing or modified for enhanced performance. While the valves are designed for particular engine types, it’s essential to check compatibility against your vehicle’s engine configuration. Racing enthusiasts and those with heavily modified engines will find these valves beneficial in enhancing overall performance and efficiency, especially in high-stakes driving situations. -
Question:
Where can I buy Manley 11661-8 Severe Duty Exhaust Valve, Stainless Steel, Set of 8?
Answer: You can purchase the Manley 11661-8 Severe Duty Exhaust Valve, Stainless Steel, Set of 8 at Ubuy. They offer a convenient online shopping experience, ensuring that you can easily find and order this high-performance product. Whether you’re a mechanic, car enthusiast, or racing fan, Ubuy provides an efficient platform for sourcing quality automotive parts like this valve set to meet your performance needs.
Manley Exhaust Valves Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
SCR 4547
Order now and get it around Friday, July 10
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Premium stainless steel construction for durability.
- Designed for severe duty applications to enhance performance.
- Fits GM LS-Series engines: LS3, L99, L92.
- Includes a complete set of 8 valves for your engine rebuild.
- Optimized head and valve stem dimensions for maximum efficiency.
- Lightweight package at only 3.0 lbs for easy installation.