Manley Performance Race Master Exhaust Valves

2012–2014 Chrysler 300 6.4L 392 HEMI

Part #: 12332-8

Overview

Manley Performance Race Master Exhaust Valves are precision-engineered components designed specifically for the demanding conditions of high-performance Chrysler 6.4L HEMI engines from 2012 to 2014. Built to endure the extreme heat and stress of bracket racing, drag racing, and oval track competition, these valves provide the durability and reliability essential for serious racers and engine builders. Whether you are assembling a new race engine or upgrading an existing setup, Manley’s Race Master valves ensure consistent valve timing and sealing at engine speeds up to 8000 RPM.

With Manley’s reputation for quality and performance, these exhaust valves are a trusted upgrade that enhances exhaust flow and valve longevity, helping maximize engine efficiency and durability under intense racing conditions.

Key Features

Manley Race Master Exhaust Valves incorporate advanced design and materials to meet the rigorous demands of high-performance Chrysler 6.4L HEMI engines. Key features include:

• Constructed from premium, high-temperature resistant materials engineered for extreme racing environments
• Precisely machined 2.180-inch head diameter optimized for the 6.4L HEMI cylinder heads
• Enhanced exhaust flow characteristics to improve engine breathing and power output
• Designed to withstand engine speeds up to 8000 RPM without valve failure or loss of sealing
• Manufactured to exacting tolerances for consistent fitment and reliable performance
• Compatible with factory valve guides and seats for straightforward installation
• Set of 8 valves included, sufficient for a complete V8 cylinder head upgrade

Construction & Design

Manley Race Master Exhaust Valves are crafted using advanced metallurgy and precision machining techniques to ensure superior strength and durability. The valves feature a robust design that resists wear, thermal fatigue, and deformation, which are critical factors in maintaining performance and reliability in high-RPM race engines.

The 2.180-inch head diameter is specifically optimized for Chrysler 6.4L HEMI cylinder heads, providing excellent sealing and efficient exhaust gas evacuation. Each valve undergoes rigorous quality control inspections to guarantee dimensional accuracy and a smooth surface finish, contributing to longer service life and consistent valve operation under demanding conditions.

Installation & Fitment

These valves are designed as direct replacements for the 2012–2014 Chrysler 300 6.4L 392 HEMI engines and fit the factory cylinder heads without any modifications. Installation follows standard engine assembly procedures and valve train setup, requiring no cutting, drilling, or special tuning. They are compatible with OEM valve guides and seats, making them an ideal choice for professional engine builders and experienced enthusiasts upgrading or rebuilding race engines.

What's Included

• Set of 8 Manley Race Master Exhaust Valves (2.180-inch head diameter)

Ideal For

This valve set is perfect for:

• Bracket racers seeking durable, high-performance exhaust valves
• Drag racers requiring reliable valve operation at high RPMs
• Oval track competitors demanding consistent valve sealing and flow
• Engine builders upgrading Chrysler 6.4L HEMI race engines
• Performance enthusiasts focused on maximizing exhaust efficiency and durability