What material is this exhaust valve made from?

This exhaust valve is constructed from XH-426 stainless steel, chosen for its durability in high-stress engine environments. The stems are chrome-plated and the tips are hardened for added wear resistance.

What is the benefit of the swirl polished underhead area?

The swirl polished underhead area helps to smooth the airflow as it passes under the valve head. This can contribute to improved combustion efficiency and overall engine performance.

Are these valves suitable for all engine types?

Manley specifically recommends these exhaust valves for alcohol engines due to their reliable performance in such conditions. They are also designed for engines operating under 8000 RPM.

Specifications

Brand: Manley Performance
Part #: 11671-1
UPC: 807298066301

Manley Chrysler Hemi 6.1L w/ Triple Groove 1.625in Race Master Exhaust Valves (Single)

Name: Manley Chrysler Hemi 6.1L w/ Triple Groove 1.625in Race Master Exhaust Valves (Single)
Brand: Manley Performance
SKU: manley-performance-manley-chrysler-hemi-6-1l-w-triple-groove-1-625in-race-master-t14-407138
Price: 28.80 USD
Availability: BackOrder

$28.80

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Race Master exhaust valve for Chrysler Hemi 6.1L engines. Features stainless steel construction and swirl polished underhead.

Key Features

This product is a single Manley Race Master exhaust valve.
It is designed for Chrysler Hemi 6.1L engines.
The valve features a 1.625-inch diameter and a straight stem (Race Master shape).
Constructed from durable XH-426 stainless steel for the exhaust valve.
Chrome stems and hard tips are included for enhanced longevity and wear resistance.
The under-head area is swirl polished and the combustion face is fully machined to improve airflow.

⚠️ 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 listing is for a single Manley Race Master exhaust valve, part number 11671-1. It's built for Chrysler Hemi 6.1L engines and features a 1.625-inch diameter with a straight stem design. These valves are constructed from high-quality stainless steel, specifically XH-426 for exhaust, offering solid durability for demanding applications.

You'll find the stems are chrome-plated and the tips are hardened for improved wear resistance and longer life. The under-head areas are swirl polished to help smooth airflow, and the combustion faces are fully machined. These features work together to optimize how air moves into and out of the cylinder. Manley recommends these exhaust valves for use in alcohol-fueled engines, where they've shown reliable performance.