Manley Performance Race Master Exhaust Valves

2003–2008 Chrysler 300, 300C, Dodge Challenger, Charger, Dakota, Durango, Magnum, Ram, Jeep Commander, Grand Cherokee, Wagoneer 5.7L HEMI

Part #: 11667-8

Overview

Manley Performance Race Master Exhaust Valves are precision-engineered for Chevrolet 5.7L HEMI engines produced from 2003 through 2008. Designed to meet the rigorous demands of bracket racing, drag racing, and oval track competition, these valves offer exceptional durability and reliability for high-performance applications. Whether you are building a high-revving race motor or upgrading your factory valvetrain, Manley’s Race Master valves provide the strength and consistency needed to maintain optimal engine performance up to 8000 RPM.

These exhaust valves are an ideal upgrade for racers and performance enthusiasts seeking enhanced valvetrain longevity and efficiency under extreme operating conditions. Their robust construction and precise fitment ensure dependable operation in demanding environments.

Key Features

Manley Race Master Exhaust Valves combine advanced materials and design innovations to deliver superior performance and durability. Key features include:

• Constructed from high-strength materials engineered to resist extreme heat and mechanical stress
• Triple groove design on the 1.575-inch valve stem enhances valve guide retention and minimizes stem wear
• Precision-machined valve head and stem ensure optimal sealing and smooth valve operation
• Specifically designed for Chevrolet 5.7L HEMI engines produced through 2008 for perfect fitment
• Engineered for reliable performance in engines operating up to 8000 RPM
• Manufactured to withstand the demands of bracket, drag, and oval track racing environments
• Set of 8 valves included, supporting complete cylinder bank rebuilds or upgrades

Construction & Design

Manley Race Master Exhaust Valves are crafted from premium materials selected for their ability to endure the extreme temperatures and stresses encountered in high-performance exhaust systems. The triple groove stem design significantly improves valve guide retention, reducing valve wobble and premature wear during aggressive engine operation.

Each valve is precision-machined to tight tolerances, ensuring excellent sealing against the valve seat and smooth movement within the valve guide. This meticulous engineering contributes to improved combustion efficiency, consistent power delivery, and enhanced engine reliability on the track.

Installation & Fitment

These exhaust valves are designed as direct replacements for stock valves in Chevrolet 5.7L HEMI engines produced from 2003 to 2008. They fit seamlessly using factory valve guides and seats without requiring any modifications, cutting, drilling, or special tuning. Compatible with both stock valvetrain components and aftermarket performance upgrades, installation is straightforward during engine rebuilds or valvetrain enhancements.

What's Included

• Set of 8 Manley Race Master Exhaust Valves with triple groove 1.575-inch stems

Ideal For

• Racers competing in bracket, drag, or oval track events
• Performance enthusiasts building or upgrading Chevrolet 5.7L HEMI engines for high RPM operation
• Engine builders seeking durable, race-proven valvetrain components for motors running up to 8000 RPM
• Anyone requiring reliable, high-quality exhaust valves for demanding performance applications