What material are these Manley exhaust valves made from?

These exhaust valves are constructed from XH-426 stainless steel, which is known for its durability. They also feature chrome-plated stems and hard tips for added wear resistance.

Are these valves suitable for a street-driven vehicle or only for racing?

Manley's Race Series valves are engineered for the rigorous demands of racing engines operating under 8000 RPM. While they offer improved durability, they are primarily intended for performance and racing applications.

What is the difference between Race Master and Race Flo valve shapes?

The Race Master shape refers to a straight stem valve, like the ones in this set. The Race Flo shape is a different design, and the choice depends on the specific airflow and clearance requirements of your racing engine.

Specifications

Brand: Manley Performance
Part #: 12332-8
UPC: 807298079325

Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Exhaust Valves (Set of 8)

Name: Manley 12-14 Chrysler Hemi 6.4L 2.180in Head Dia Race Master Exhaust Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-12-14-chrysler-hemi-6-4l-2-180in-head-dia-race-master--t14-330411
Price: 235.06 USD
Availability: BackOrder

$235.06

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Manley 12-14 Chrysler Hemi 6.4L Race Master Exhaust Valves (Set of 8). Stainless steel construction for improved durability in high-performance engines.

Key Features

Fits Chrysler Hemi 6.4L engines.
Set includes eight (8) Race Master exhaust valves.
Valves are constructed from durable XH-426 stainless steel.
Chrome-plated stems and hard tips enhance longevity and wear resistance.
Swirl polished under-head areas and fully machined combustion faces help optimize airflow.
Race Master (straight stem) shape is suitable for specific racing engine configurations.

These Manley valves are designed for Chrysler Hemi 6.4L engines. Please verify fitment with your specific vehicle and engine build.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This set includes eight Manley Race Master exhaust valves, specifically designed for Chrysler Hemi 6.4L engines. These valves are built to handle the tough conditions found in racing applications, operating reliably up to 8000 RPM. They are a solid choice if you're rebuilding the top end of your Hemi and need components that can withstand high-performance use.

Each valve is crafted from XH-426 stainless steel, giving them notable durability. The stems are chrome-plated and feature hard tips to resist wear over time, while the under-head areas are swirl polished and the combustion faces are fully machined. This machining helps optimize airflow into the combustion chamber, contributing to better efficiency. Manley offers these in a Race Master (straight stem) shape, which is what you get in this set, designed to fit specific racing engine requirements.

These exhaust valves are also recommended for use in alcohol-fueled engines, where they can provide dependable performance. If you're working on a performance Hemi build, these valves are a well-built component to consider for the exhaust side.