Manley Intake Valves for Mopar Gen III Hemi R/F 2.140in
If you're looking to boost your Mopar Gen III Hemi's performance, the Manley Intake Valves 12330B-8 are a fantastic upgrade. Designed specifically for Chrysler and Dodge 6.4L Hemi engines, these valves are crafted to enhance airflow and improve engine efficiency.
Key Features
- Race Flo / Race Master Valves: Engineered for high-performance applications, these valves are perfect for racing enthusiasts.
- High-Quality NK-842 Stainless Steel: This durable material ensures longevity and resistance to wear, making them ideal for demanding conditions.
- Swirl Polished and Fully Machined: The meticulous machining process enhances the surface finish, contributing to better airflow and performance.
- Pro Flo Underhead Design: This innovative design improves flow characteristics, allowing your engine to breathe easier and perform better.
- Bead Loc Groove: Specifically designed for the Chrysler/Dodge 6.4L Hemi, ensuring a perfect fit and secure installation.
Benefits of Manley Intake Valves
Upgrading to Manley Intake Valves means you're investing in a product that not only fits your engine perfectly but also optimizes its performance. With improved airflow, your Hemi will respond quicker, and you'll notice a difference in both power and efficiency. Whether you're on the track or cruising the streets, these valves will help you get the most out of your engine.
Specifications
- Part Number: 12330B-8
- Diameter: 2.140 inches
- Material: NK-842 Stainless Steel
- Application: Chrysler/Dodge 6.4L Hemi Engines
Fitment Information
The Manley Intake Valves are designed to fit seamlessly into Chrysler and Dodge 6.4L Hemi engines. Their precise engineering ensures that they will work harmoniously with your engine's existing components, making installation straightforward and hassle-free.
What Customers Are Saying
Users have praised the Manley Intake Valves for their noticeable performance improvements and reliable construction. Many have noted enhanced throttle response and better overall engine performance after installation. Customers appreciate the quality of the NK-842 stainless steel, citing its durability and resistance to wear as significant benefits.
Upgrade your engine with the Manley Intake Valves 12330B-8 and experience the difference in performance and reliability that comes with high-quality engineering.
⚠ 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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