What material is this exhaust valve made from?

This Manley exhaust valve is constructed from stainless steel, which is known for its durability. It also features chrome stems and hard tips for added wear resistance.

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

The swirl polished under-head areas and fully machined combustion faces are designed to help improve airflow into the cylinder. This can contribute to more efficient combustion.

Is this valve suitable for high-RPM use?

Yes, these valves are recommended for engines operating under 8000 RPM. They are also specifically recommended for exhaust valves in alcohol engines.

Specifications

Brand: Manley Performance
Part #: 12345-1

Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single

Name: Manley Chevrolet LT1 6.2L 1.590in Head Diameter Race Master Exhaust Valve - Single
Brand: Manley Performance
SKU: manley-performance-manley-chevrolet-lt1-6-2l-1-590in-head-diameter-race-master-e-t14-549103
Price: 27.37 USD
Availability: BackOrder

$27.37

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Manley Race Master exhaust valve for Chevrolet LT1 6.2L engines. Stainless steel construction for durability.

Key Features

Fits Chevrolet LT1 6.2L engines.
Stainless steel construction offers good durability.
Chrome stems and hard tips help resist wear and extend longevity.
Swirl polished under-head areas and fully machined combustion faces help optimize airflow.
Race Master straight stem design.
Recommended for exhaust valves 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

If you're rebuilding the top end of your Chevrolet LT1 6.2L engine and need a reliable exhaust valve, this Manley Race Master valve is a solid option. It's built for engines that see a lot of action, especially those running alcohol fuel, and can handle up to 8000 RPM.

This valve is made from stainless steel, which is a strong choice for exhaust components. It also features a chrome stem and a hard tip to help it last longer and resist wear, even with frequent use. The under-head area is swirl polished and the combustion face is fully machined. This helps improve airflow into the cylinder and makes sure combustion is as efficient as possible.

Manley offers this valve in a Race Master straight stem design, which is what you're looking at here. They also have a Race Flo shape if your cylinder head porting calls for something different. This is a single valve, so make sure you order enough to replace all the exhaust valves in your engine.