If you're looking to upgrade your engine's exhaust system, the Manley Valve - Exhaust, Valve-409 R/M 1.750 is an excellent choice. Designed specifically for automotive applications, this valve is engineered to enhance your engine's efficiency and performance. Let's break down what makes this product a great addition to your vehicle.
Manley is known for its high-quality manufacturing standards, ensuring that each valve is built to last. With precise dimensions and a robust design, these valves can handle the heat and pressure of high-performance engines, making them a reliable choice for both daily drivers and racing applications. The 9-degree dish and 15-degree underhead angle help optimize airflow, contributing to improved exhaust flow and overall engine efficiency.
This valve is designed to be universally compatible with various vehicle models, but we recommend doing a bit of research to ensure it fits your specific application. The Manley Valve - Exhaust, Valve-409 R/M 1.750 is an ideal fit for a range of domestic vehicles, but compatibility may vary based on engine modifications or specific vehicle configurations.
Customers who have purchased the Manley Valve - Exhaust, Valve-409 R/M 1.750 have praised its durability and performance. Many have noted noticeable improvements in exhaust flow and engine response after installation. Here’s what some users are saying:
Choosing the right exhaust valve can make a significant difference in your vehicle's performance. The Manley Valve - Exhaust, Valve-409 R/M 1.750 stands out with its robust design and precise engineering. Make sure to double-check compatibility with your vehicle, and get ready to enjoy the benefits of enhanced exhaust flow and engine efficiency!
⚠ 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.