Manley Intake Valves BBC S/D 2.250in - Part Number 11534-8
If you're looking to upgrade your Big Block Chevrolet engine, the Manley Intake Valves BBC S/D 2.250in (Part Number 11534-8) is a fantastic choice. These valves are designed specifically for high-performance applications, ensuring that your engine breathes better and runs more efficiently.
Key Features
- Severe Duty Valves: Built to withstand the rigors of high-performance driving, these valves are made for durability and reliability.
- NK-844 Stainless Intake Material: This premium material offers excellent resistance to wear and corrosion, ensuring longevity.
- Chrome Stems and Hard Tips: The chrome finish not only looks great but also provides added protection against wear.
- Swirl Polished and Fully Machined: Precision machining and swirl polishing enhance airflow, allowing for improved engine performance.
- Big Block Chevrolet Fitment: Specifically designed for Big Block Chevy engines, these valves are an ideal fit for your performance build.
Benefits of Manley Intake Valves
Upgrading to Manley Intake Valves means you’re investing in quality. These valves help optimize airflow into your engine, which can lead to significant improvements in horsepower and torque. Whether you're hitting the track or cruising down the highway, these valves will help your engine perform at its best.
Specifications
- Part Number: 11534-8
- Valve Diameter: 2.250 inches
- Material: NK-844 Stainless Steel
- Finish: Chrome Stems, Hard Tips
- Application: Big Block Chevrolet Engines
Fitment Information
The Manley Intake Valves are specifically designed for Big Block Chevrolet engines, making them an excellent choice for anyone looking to enhance their vehicle's performance. Whether you're building a street machine or a race car, these valves will fit seamlessly into your setup.
What Customers Are Saying
Customers have praised the Manley Intake Valves for their durability and performance. Many have noted improved throttle response and power gains after installation. The precision engineering and high-quality materials have made these valves a favorite among both enthusiasts and professional builders.
Upgrade your Big Block Chevrolet engine with the Manley Intake Valves BBC S/D 2.250in (Part Number 11534-8) and experience the difference in performance and reliability.
⚠ 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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