Manley Performance Race Master Exhaust Valve Set

2005–2010 Chrysler 300C, Dodge Challenger, Dodge Charger, Dodge Magnum, Jeep Grand Cherokee 6.1L HEMI SRT8

Part #: 11669B-8

Overview

The Manley Performance Race Master Exhaust Valve Set is engineered specifically for Chrysler 6.1L HEMI engines from 2005 to 2010, delivering exceptional durability and performance for high-revving applications. Designed to meet the rigorous demands of bracket racing, drag racing, and oval track competition, these valves provide reliable operation at engine speeds up to 8000 RPM. Whether you are a dedicated racer or a performance enthusiast upgrading your valvetrain, this set offers improved exhaust flow and enhanced engine responsiveness under extreme conditions.

With a precision-machined 1.595-inch valve head diameter and a bead lock groove design, these exhaust valves ensure stable valve retention and optimized gas evacuation, contributing to increased power and longevity of your Chrysler HEMI 6.1L engine.

Key Features

Manley Performance Race Master Exhaust Valves incorporate advanced engineering and premium materials to support high-performance Chrysler HEMI 6.1L engines:

• Constructed from high-strength, heat-resistant materials designed for the extreme conditions of racing environments
• Bead lock groove enhances valve spring retainer retention and valve stability under aggressive camshaft profiles and high spring pressures
• 1.595-inch valve head diameter optimized for improved exhaust gas flow and reduced backpressure
• Precision-machined for consistent sealing and reliable operation at engine speeds up to 8000 RPM
• Ideal for bracket racing, drag racing, and oval track applications requiring durable and high-performance valvetrain components
• Designed to withstand the stresses of high RPM operation without compromising reliability

Construction & Design

These exhaust valves are manufactured with meticulous attention to detail, utilizing premium-grade materials selected for their strength and thermal resistance. The bead lock groove is a critical design feature that securely holds the valve spring retainer in place, ensuring valve stability during aggressive camshaft events and sustained high RPM operation.

The 1.595-inch valve head diameter is carefully engineered to balance optimal exhaust flow with precise valve train geometry, promoting efficient combustion and exhaust evacuation. Manley’s precision machining guarantees tight tolerances for consistent fitment and dependable performance in demanding racing conditions.

Installation & Fitment

The Manley Race Master Exhaust Valve Set is designed as a direct replacement for Chrysler 6.1L HEMI engines from 2005 to 2010, including the 300C, Dodge Challenger, Charger, Magnum, and Jeep Grand Cherokee SRT8 models. Installation requires standard engine assembly procedures and proper valve spring selection compatible with the bead lock groove design.

No special modifications such as cutting, drilling, or tuning are necessary, making this valve set a straightforward upgrade for performance builds focused on durability and high RPM capability.

What's Included

• Set of 8 Manley Race Master Exhaust Valves with bead lock groove

Ideal For

• Bracket racers seeking reliable, high-RPM valvetrain components
• Drag racers requiring durable exhaust valves for aggressive camshaft profiles
• Oval track competitors needing consistent valve performance under stress
• Performance enthusiasts upgrading Chrysler HEMI 6.1L engines for improved exhaust flow and engine responsiveness