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Part #: 12333-8
The Manley Performance Race Master Exhaust Valve Set is engineered specifically for the 2012 to 2014 Chrysler 300 equipped with the 6.4L 392 HEMI engine. Designed for high-performance racing applications, these valves deliver exceptional durability and reliability under the extreme conditions of bracket racing, drag racing, and oval track competition. Built to withstand engine speeds up to 8,000 RPM, they provide consistent valve sealing and improved exhaust flow, making them an ideal upgrade for racers and engine builders seeking to maximize power and efficiency.
Whether you are assembling a dedicated race engine or upgrading your existing setup, Manley’s Race Master valves offer the strength and precision necessary to enhance exhaust gas evacuation and support increased horsepower and torque output.
Manley Race Master Exhaust Valves combine advanced materials and precision engineering to meet the demands of serious racing environments. Key features include:
Manley Race Master Exhaust Valves are crafted from premium materials selected for their exceptional strength and heat resistance, essential for the demanding environment inside a high-performance combustion chamber. The valves feature a precise 1.675-inch head diameter, which enhances exhaust flow characteristics and contributes to improved engine breathing and efficiency.
Each valve undergoes rigorous quality control and finishing processes to ensure smooth surfaces and accurate dimensions. This meticulous attention to detail helps maintain optimal valve sealing, reduces wear, and minimizes the risk of premature failure during high-RPM operation, ensuring long-lasting performance in racing conditions.
These exhaust valves are designed as direct replacements for the factory valves in 2012–2014 Chrysler 300 models equipped with the 6.4L 392 HEMI engine. Installation follows standard engine assembly procedures and should be performed by a qualified technician or experienced engine builder familiar with high-performance valve train components.
No modifications to the cylinder head or valve train are necessary when installing these valves, provided the engine operates within the specified RPM range and conditions. This ensures a straightforward upgrade path for racers and builders looking to enhance their engine’s exhaust performance.
Manley Performance manufactures high-strength engine internals for serious builds—especially forged pistons, connecting rods, valves, and valvetrain components developed for racing and high-output street applications. If you’re building for boost, high compression, or sustained RPM, Manley is a common choice for parts engineered to take abuse and keep power reliable.
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Please note: The ETA is an estimate, not a guarantee. While we work closely with our suppliers to keep dates as accurate as possible, delays due to shipping carriers, weather, customs, or supplier-side issues may occasionally push the actual arrival beyond the date shown. Likewise, inventory may arrive sooner than the ETA in many cases. If you would like to be notified for when this item arrives, sign up for our back in stock notifications!
12333-8 Manley Performance 12-14 Chrysler 300 6.4L Race Master 1.675" Triple Groove Exhaust Valve Set (F&R). Manley Performance Race Master Exhaust Valves deliver exceptional durability and precision for high-performance Chrysler 6.4L HEMI engines. Designed for racing applications up to 8,000 RPM, these valves improve exhaust flow and engine efficiency with a 1.675-inch head diameter. Built from heat-resistant, high-strength materials, they ensure reliable sealing and long-lasting performance under extreme conditions, making them ideal for bracket, drag, and oval track racers seeking maximum power and valve train reliability.
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Part #: 12333-8
The Manley Performance Race Master Exhaust Valve Set is engineered specifically for the 2012 to 2014 Chrysler 300 equipped with the 6.4L 392 HEMI engine. Designed for high-performance racing applications, these valves deliver exceptional durability and reliability under the extreme conditions of bracket racing, drag racing, and oval track competition. Built to withstand engine speeds up to 8,000 RPM, they provide consistent valve sealing and improved exhaust flow, making them an ideal upgrade for racers and engine builders seeking to maximize power and efficiency.
Whether you are assembling a dedicated race engine or upgrading your existing setup, Manley’s Race Master valves offer the strength and precision necessary to enhance exhaust gas evacuation and support increased horsepower and torque output.
Manley Race Master Exhaust Valves combine advanced materials and precision engineering to meet the demands of serious racing environments. Key features include:
Manley Race Master Exhaust Valves are crafted from premium materials selected for their exceptional strength and heat resistance, essential for the demanding environment inside a high-performance combustion chamber. The valves feature a precise 1.675-inch head diameter, which enhances exhaust flow characteristics and contributes to improved engine breathing and efficiency.
Each valve undergoes rigorous quality control and finishing processes to ensure smooth surfaces and accurate dimensions. This meticulous attention to detail helps maintain optimal valve sealing, reduces wear, and minimizes the risk of premature failure during high-RPM operation, ensuring long-lasting performance in racing conditions.
These exhaust valves are designed as direct replacements for the factory valves in 2012–2014 Chrysler 300 models equipped with the 6.4L 392 HEMI engine. Installation follows standard engine assembly procedures and should be performed by a qualified technician or experienced engine builder familiar with high-performance valve train components.
No modifications to the cylinder head or valve train are necessary when installing these valves, provided the engine operates within the specified RPM range and conditions. This ensures a straightforward upgrade path for racers and builders looking to enhance their engine’s exhaust performance.
Manley Performance manufactures high-strength engine internals for serious builds—especially forged pistons, connecting rods, valves, and valvetrain components developed for racing and high-output street applications. If you’re building for boost, high compression, or sustained RPM, Manley is a common choice for parts engineered to take abuse and keep power reliable.
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Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Free Standard Shipping on orders over $300. Select “Free Shipping” at checkout. *Exclusions apply on oversized and freight items.
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
