Manley Performance Race Master Exhaust Valves

2003–2008 Chevrolet 5.7L HEMI

Part #: 11667B-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-RPM applications up to 8000 RPM. Whether you are building a dedicated race engine or upgrading your existing valvetrain, Manley’s Race Master valves provide consistent performance and longevity under extreme conditions.

These valves are an ideal choice for racers and engine builders who require robust exhaust components that maintain optimal flow and valvetrain stability during intense operation. Their advanced design ensures your engine breathes efficiently while withstanding the stresses of competitive motorsports.

Key Features

Manley Race Master Exhaust Valves incorporate advanced engineering and high-quality materials to deliver superior strength and performance. Key features include:

• Bead Loc groove design for enhanced valve spring retention, reducing the risk of valve float at high RPM
• 1.575-inch valve head diameter optimized for efficient exhaust gas flow in Chevrolet 5.7L HEMI engines
• Manufactured from premium materials engineered to resist wear, heat, and fatigue during demanding race conditions
• Precision ground valve stems for smooth valve guide fitment and reduced friction
• Specifically designed for Chevrolet 5.7L HEMI engines built through the 2008 model year
• Engineered to perform reliably in engines operating up to 8000 RPM
• Complete set of 8 valves included, sufficient for a full V8 exhaust valve upgrade

Construction & Design

These exhaust valves are manufactured to exacting standards to endure the high stresses of racing environments. The Bead Loc groove enhances valve spring retention, ensuring stable valvetrain operation and minimizing spring failure risks at elevated engine speeds. The 1.575-inch valve head size is carefully optimized to improve exhaust scavenging and flow characteristics, contributing to better engine breathing and overall efficiency.

Manley’s meticulous attention to stem finish and material selection guarantees long-lasting durability and consistent performance lap after lap. These valves fit directly into the factory valve guides of the specified Chevrolet 5.7L HEMI engines, providing a precise and reliable fitment without the need for modifications.

Installation & Fitment

This set of Manley Race Master Exhaust Valves is designed as a direct replacement for the exhaust valves in Chevrolet 5.7L HEMI engines manufactured from 2003 to 2008. Installation follows standard engine assembly procedures, requiring proper valve spring and retainer setup to match the Bead Loc groove design.

No modifications to the cylinder head or valve guides are necessary when installing these valves, assuming the engine is prepared for performance components. Professional installation is recommended to ensure correct valve lash, seating, and optimal valvetrain operation.

What's Included

• Set of 8 Manley Race Master Exhaust Valves with Bead Loc groove

Ideal For

• Bracket racers and drag racers seeking durable, high-RPM exhaust valves
• Oval track racers requiring reliable valvetrain components for sustained performance
• Engine builders upgrading Chevrolet 5.7L HEMI engines for racing applications
• Performance enthusiasts operating engines up to 8000 RPM who demand quality and longevity