Manley Intake Valves SBC S/D 2.020in - Part Number 11596-8
Upgrade your Small Block Chevrolet (SBC) engine with the Manley Intake Valves SBC S/D 2.020in, specifically designed to enhance your vehicle's performance and reliability. These valves are built to withstand the rigors of high-performance applications, making them a perfect fit for both street and race setups.
Key Features
- Severe Duty Intake Valves: Engineered for durability, these valves can handle extreme conditions, ensuring longevity and consistent performance.
- NK-844 Stainless Material: Crafted from high-quality stainless steel, these valves resist corrosion and maintain their integrity under high temperatures.
- Chrome Stems and Hard Tips: The chrome-plated stems not only look great but also reduce friction, while the hardened tips enhance wear resistance.
- Swirl Polished and Fully Machined: Each valve undergoes precise machining and swirl polishing, which optimizes airflow and enhances combustion efficiency.
- Perfect Fit for Small Block Chevrolet: Specifically designed for SBC applications, these valves fit seamlessly into your engine, making installation straightforward.
Specifications
- Part Number: 11596-8
- Valve Diameter: 2.020 inches
- Material: NK-844 Stainless Steel
- Finish: Chrome Stems, Hard Tips, Swirl Polished
Fitment
The Manley Intake Valves 11596-8 are designed for a variety of Small Block Chevrolet engines. Whether you’re building a classic muscle car or a modern street machine, these valves will provide the performance boost you need. They are compatible with a range of applications, ensuring that you can achieve optimal performance from your engine.
Customer Reviews
Customers have praised the Manley Intake Valves for their reliability and performance. Many users report improved throttle response and an increase in horsepower after installation. One reviewer noted, "These valves made a noticeable difference in my engine's performance. I highly recommend them for anyone looking to upgrade their SBC!" Another added, "The quality of these valves is top-notch. They fit perfectly and have held up great under pressure."
Upgrade your SBC with the Manley Intake Valves 11596-8 and experience the difference in performance and reliability. With their robust construction and precise engineering, these valves are a smart choice for any serious automotive enthusiast.
⚠ 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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