Manley Performance Race Master Exhaust Valve Set

2011–2024 Chrysler 300, Dodge Challenger, Dodge Charger, Dodge Durango, Jeep Grand Cherokee, Jeep Wrangler, Ram 2500, Ram 3500, Jeep Grand Wagoneer 6.4L 392 HEMI

Part #: 12331B-8

Overview

The Manley Performance Race Master Exhaust Valve Set is engineered specifically for the Chrysler 6.4L 392 HEMI engine, covering model years 2011 through 2024. Designed for high-performance racing applications, these exhaust valves deliver exceptional durability and reliability under extreme conditions. Whether you’re building a bracket racer, drag car, or oval track machine, these valves provide the strength and precision needed to support aggressive cam profiles and engine speeds up to 8000 RPM.

Built to withstand the intense heat and stress of competitive motorsports, Manley’s Race Master valves help maintain optimal exhaust flow and valve sealing, ensuring consistent performance and extended valve life. This set of eight valves is ideal for complete engine rebuilds or performance upgrades on Chrysler 6.4L HEMI-powered vehicles.

Key Features

Manley’s Race Master Exhaust Valves incorporate advanced engineering and materials to meet the demands of high-RPM racing environments:

• Constructed from premium, heat-resistant materials for superior durability in extreme conditions
• Precisely sized 1.654-inch valve head diameter optimized for Chrysler 6.4L HEMI exhaust ports
• Designed to endure stresses of bracket, drag, and oval track racing without compromising reliability
• Precision manufacturing ensures consistent valve seat sealing and long service life
• Supports engine operation up to 8000 RPM with aggressive camshaft profiles
• Direct fit for factory valve guides and seats, enabling straightforward installation
• Set of 8 valves included for full exhaust valve replacement

Construction & Design

Manley’s Race Master Exhaust Valves are crafted from high-grade materials selected for their exceptional heat resistance and wear properties, essential for high-performance racing engines. The valves feature a robust stem and head design engineered to maintain structural integrity at elevated engine speeds and temperatures.

The 1.654-inch valve head diameter is carefully matched to the Chrysler 6.4L HEMI exhaust port dimensions, promoting efficient exhaust gas evacuation and improved engine breathing. Precision machining and stringent quality control ensure each valve meets exacting tolerances for optimal fit, sealing, and durability.

Installation & Fitment

These exhaust valves are designed as direct replacements for the Chrysler 6.4L 392 HEMI engine exhaust valves found in a wide range of vehicles from 2011 to 2024. They fit seamlessly into the factory valve guides and seats, allowing for straightforward installation by experienced engine builders and machinists. No modifications to the cylinder head or valve train components are typically required when upgrading to these valves.

Compatible vehicles include:

• 2011–2024 Chrysler 300 6.4L 392
• 2011–2024 Dodge Challenger 6.4L 392
• 2011–2024 Dodge Charger 6.4L 392
• 2011–2024 Dodge Durango 6.4L 392
• 2011–2024 Jeep Grand Cherokee 6.4L SRT8
• 2011–2024 Jeep Wrangler 6.4L 392
• 2011–2024 Ram 2500 6.4L 392
• 2011–2024 Ram 3500 6.4L 392
• 2021–2024 Jeep Grand Wagoneer 6.4L 392

What's Included

• Set of 8 Manley Race Master Exhaust Valves (1.654" diameter)

Ideal For

This valve set is perfect for racers, engine builders, and performance enthusiasts focused on maximizing the durability and efficiency of Chrysler 6.4L HEMI race engines. It is especially suited for:

• Bracket and drag racing applications
• Oval track racing engines
• High-RPM race engines operating up to 8000 RPM
• Performance builds requiring reliable, race-proven valve components