Upgrade your engine's performance with the Manley Exhaust Valve, specifically designed for Small Block Chevy (SBC) applications. This valve, part number 10747-8, is engineered to fit seamlessly into your vehicle, ensuring optimal functionality and efficiency.
This valve is crafted for durability and performance, making it an excellent choice for those looking to enhance their engine's exhaust flow. With its precision engineering, you can expect improved exhaust efficiency, which translates to better overall engine performance. The 10-degree dish design of the head allows for optimal combustion chamber dynamics, while the robust construction ensures longevity under high-performance conditions.
The Manley Exhaust Valve 10747-8 is designed to fit a variety of Small Block Chevy engines. While it offers a universal fitment, it's always best to double-check your specific vehicle application to ensure compatibility. This valve is perfect for both street and race applications, providing the reliability and performance you need.
Here's what some of our customers have to say about the Manley Exhaust Valve:
"I installed these valves in my SBC, and the difference was noticeable right away. Great quality and performance!" - John D.
"These valves fit perfectly and really improved my engine's exhaust flow. Highly recommend!" - Mike S.
"Manley products never disappoint. These valves are no exception. Solid construction and easy to install!" - Lisa R.
Prop 65 Warning: This product may contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. Please take necessary precautions when handling.
Universal Fitment: While these valves are designed for a wide range of applications, we recommend verifying compatibility with your specific engine model to ensure a perfect fit.
⚠ 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.