Manley Performance Race Master Exhaust Valve Set

2012–2014 Chrysler 300 6.4L 392 HEMI

Part #: 12333-8

Overview

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.

Key Features

Manley Race Master Exhaust Valves combine advanced materials and precision engineering to meet the demands of serious racing environments. Key features include:

• Specifically designed for 2012–2014 Chrysler 6.4L 392 HEMI engines for perfect fitment and compatibility
• 1.675-inch head diameter optimized for superior exhaust flow and valve seating
• Constructed from high-strength, heat-resistant materials to endure prolonged high-RPM operation
• Meticulously balanced and finished to ensure consistent sealing and durability under extreme conditions
• Engineered to perform reliably up to 8,000 RPM, ideal for bracket, drag, and oval track racing
• Manufactured to exacting tolerances for dependable valve train operation and longevity
• Designed to improve exhaust gas evacuation efficiency, supporting increased horsepower and torque

Construction & Design

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.

Installation & Fitment

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.

What's Included

• Set of 8 Manley Race Master Exhaust Valves sized for Chrysler 6.4L 392 HEMI (2012–2014)

Ideal For

• Bracket racers seeking durable, high-performance exhaust valves
• Drag racers requiring reliable valve operation up to 8,000 RPM
• Oval track competitors needing consistent valve sealing and flow
• Engine builders upgrading Chrysler 6.4L 392 HEMI engines for racing applications