Manley Performance Race Master Exhaust Valves

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

Part #: 11671-8

Overview

Manley Performance Race Master Exhaust Valves are precision-engineered for Chrysler 6.1L HEMI engines, delivering exceptional durability and reliability under extreme racing conditions. Designed to withstand the high RPM demands of bracket racing, drag racing, and oval track competition, these valves ensure optimal exhaust flow and valve sealing for engines operating up to 8000 RPM.

Built for serious racers and performance enthusiasts, this valve set enhances the exhaust valve train’s strength and consistency, helping to maximize engine power and longevity. Whether you’re building a race-ready 6.1L HEMI or upgrading for sustained high-RPM performance, these valves provide the quality and fitment you need.

Key Features

Manley’s Race Master Exhaust Valves incorporate advanced design elements and premium materials to meet the rigorous demands of competitive racing:

• 1.625-inch valve stem with a triple groove design for superior valve spring retention and stability at high RPM
• Manufactured from high-grade alloys optimized for heat resistance and durability in exhaust environments
• Precision ground and finished to ensure consistent valve sealing and smooth valve train operation
• Specifically engineered for direct fitment in Chrysler 6.1L HEMI engines without modification
• Capable of reliable performance in engines running up to 8000 RPM
• Complete set of 8 valves included, covering all exhaust valves for V8 configurations
• Ideal for bracket racing, drag racing, and oval track competition

Construction & Design

Manley Race Master Exhaust Valves are crafted from premium alloys that resist wear, thermal fatigue, and corrosion common in high-performance exhaust systems. The triple groove stem design enhances valve spring retention, reducing the risk of valve float during high-speed operation. Each valve undergoes meticulous precision grinding and finishing to ensure optimal sealing against the valve seat, which is critical for maintaining compression and exhaust efficiency.

This robust construction supports the extreme conditions encountered in competitive racing, helping maintain engine reliability and consistent performance lap after lap.

Installation & Fitment

These valves are designed as direct replacements for the exhaust valves in Chrysler 6.1L HEMI engines from 2005 to 2010. They fit precisely into factory valve guides and are compatible with stock valve springs, requiring no special machining, cutting, or tuning beyond standard engine assembly procedures. This ensures a straightforward installation process for engine builders and racers alike.

What's Included

• Set of 8 Manley Race Master Exhaust Valves (1.625-inch stem diameter, triple groove)

Ideal For

This valve set is perfect for racers and performance builders who demand durable, high-quality exhaust valves for Chrysler 6.1L HEMI engines. It is especially suited for:

• Bracket racers seeking consistent and reliable valve performance
• Drag racers requiring exhaust components that withstand extreme RPM and heat
• Oval track competitors needing dependable valve operation at high engine speeds
• Engine builders focused on longevity, precision fitment, and race-proven durability

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.