
Manley Exhaust Valve - BBC R/M 1.900
The Manley Exhaust Valve, part number 11765-8, is designed specifically for high-performance applications in Big Block Chevy (BBC) engines. Whether you're rebuilding your engine or upgrading for better performance, this valve is a fantastic choice to enhance your engine's efficiency and power.
Key Features
- Head Diameter: 1.900 inches
- Industry: Automotive
- Margin Width: 0.075 inches
- Overall Length: 5.422 inches
- Product Market: Domestic
- Prop 65 Warning: Yes
- Seat Width: 0.100 inches
- Stem Diameter: 0.3415 inches
- Tip Length: 0.250 inches
- Top of Head: 20 Degree Dish
- Type: Exhaust
- Underhead Angle: 25.00 degrees
- Underhead Radius: 3/8 inches
Benefits of the Manley Exhaust Valve
This exhaust valve is crafted for durability and performance, ensuring that your engine breathes better and operates more efficiently. The precise dimensions and high-quality materials used in its construction allow for a perfect fit and optimal sealing, which can lead to improved horsepower and torque. With a 20-degree dish on the top of the head and a well-engineered underhead angle, this valve is tailored for serious performance enthusiasts.
Fitment Information
This valve is designed for use in Big Block Chevy engines, making it a solid choice for those looking to upgrade their exhaust system. It's crucial to verify compatibility with your specific engine model to ensure a proper fit.
Universal Fitment: While this product is designed to fit various applications, we recommend doing some research on your specific vehicle to confirm compatibility.
Customer Reviews
Many customers have praised the Manley Exhaust Valve for its quality and performance. Users have reported noticeable improvements in engine response and power output after installation. One customer noted, "These valves fit perfectly and made a significant difference in my BBC's performance!" Another user mentioned, "Great product! The engineering behind these valves is top-notch, and they hold up well under pressure."
Important Safety Information
As with any high-performance product, please be aware of the Prop 65 warning associated with this item. Ensure you are informed about any potential risks.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive SpaceLed by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid RacingIf you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.
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