What material are these exhaust valves made from?

These Manley exhaust valves are constructed from stainless steel for good durability. They also feature chrome stems and hard tips to enhance longevity and wear resistance.

Are these valves suitable for high-RPM use?

Yes, these valves are designed for engines operating under 8000 RPM, making them suitable for many racing applications.

What is the benefit of the swirl polished and machined faces?

The swirl polished under head areas and fully machined combustion faces help to optimize airflow through the cylinder head and improve combustion efficiency.

Specifications

Brand: Manley Performance
Part #: 12331-8
UPC: 807298079288

Manley 2011+ Chrysler/Dodge 6.4L Hemi w/ Triple Groove (1.654) Race Master Exhaust Valves (Set of 8)

Name: Manley 2011+ Chrysler/Dodge 6.4L Hemi w/ Triple Groove (1.654) Race Master Exhaust Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-2011-chrysler-dodge-6-4l-hemi-w-triple-groove-1-654-ra-t14-195775
Price: 235.06 USD
Availability: InStock

$235.06

Only 5 left in stock

Manley 2011+ Chrysler/Dodge 6.4L Hemi w/ Triple Groove (1.654) Race Master Exhaust Valves (Set of 8). Stainless steel construction for durability.

Key Features

Fits 2011+ Chrysler/Dodge 6.4L Hemi engines.
Set includes 8 Race Master exhaust valves.
Constructed from durable stainless steel.
Features chrome stems and hard tips for wear resistance.
Swirl polished under head areas and machined faces optimize airflow.
Recommended for use in alcohol engines.

⚠️ 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

Manley Performance is well-known for making strong internal engine components. For your 2011 and newer Chrysler or Dodge with a 6.4L Hemi, these Race Master exhaust valves are a solid option for rebuilding or upgrading your engine's top end. They are designed to handle the demands of racing engines, especially those running up to 8000 RPM.

These exhaust valves are made from stainless steel, which gives them good durability. They also have chrome stems and hard tips to help them last longer and resist wear. The under-head areas are swirl polished and the faces are machined to help air move more smoothly through the cylinder head and improve how efficiently the engine burns fuel. If you're running an alcohol-based fuel, these are specifically recommended for exhaust valve use.

This set includes eight exhaust valves, enough for a complete V8 engine. They are the straight stem 'Race Master' style, which is one of the shapes Manley offers to fit different racing engine setups.