If you're looking to upgrade your vehicle's intake system, the Manley Valve - Intake, Valve-FD MOD R/M 44.5mm is a fantastic choice. Designed for performance and reliability, this valve is perfect for enthusiasts who want to enhance their engine's efficiency and power delivery.
This intake valve is engineered for optimal flow and durability, making it an excellent addition to your engine. The precise specifications ensure that it fits seamlessly into your vehicle's setup, promoting better combustion and enhanced performance. Whether you're hitting the track or just looking to improve your daily drive, this valve is sure to make a difference.
Universal Fitment: While this valve is designed for a range of applications, we recommend that you verify its compatibility with your specific vehicle model. Doing your research will ensure that this valve meets your needs and fits correctly.
Many customers have praised the Manley Valve for its quality and performance. Users have noted improvements in throttle response and overall engine efficiency after installation. Here are some highlights from customer reviews:
For those who like to dive into the details, here’s a quick rundown of the specifications for the Manley Valve 11634B-1:
The Manley Valve - Intake, Valve-FD MOD R/M 44.5mm is a solid choice for anyone looking to boost their engine's performance. With its robust construction and excellent fitment, it's designed to help you get the most out of your vehicle. Don't hesitate to make this upgrade—your engine will thank you!
⚠ 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.