What is the primary material of this exhaust valve?

This Manley exhaust valve is constructed from stainless steel, chosen for its durability. It also features chrome stems and hard tips to further enhance wear resistance.

Are these valves suitable for high-RPM use?

Yes, Manley's Race Series valves are designed for engines operating under 8000 RPM, making them suitable for demanding applications like drag racing or oval track use.

What are the specific dimensions of this valve?

This exhaust valve has a head diameter of 1.590 inches, a stem diameter of 0.3136 inches, and an overall length of 4.923 inches.

Specifications

Brand: Manley Performance
Part #: 11621-1

Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Master Exhaust Valve - Single

Name: Manley Chevy LS-3/L-99 (L-92 Head) Small Block Race Master Exhaust Valve - Single
Brand: Manley Performance
SKU: manley-performance-manley-chevy-ls-3-l-99-l-92-head-small-block-race-master-exha-t14-714623
Price: 29.39 USD
Availability: BackOrder

$29.39

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Manley Race Master exhaust valve for Chevy LS-3/L-99 engines. Stainless steel construction for durability.

Key Features

Fits Chevy LS-3/L-99 (L-92 Head) Small Block engines.
Race Master straight stem design.
Constructed from durable stainless steel for the exhaust side.
Features chrome stems and hard tips for improved longevity.
Swirl polished under-head area and fully machined combustion face optimize airflow.
Recommended for exhaust valves in alcohol-fueled 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 offers this Race Master exhaust valve, a solid choice for your Chevy LS-3 or L-99 engine, especially if you're working with L-92 heads. These valves are built for engines that see a lot of action, typically running up to 8000 RPM, making them a popular pick for drag racing or oval track applications.

Constructed from stainless steel, this exhaust valve is designed to hold up under tough conditions. The stems are chrome-plated and feature hard tips for better wear resistance, and the under-head area is swirl polished to help improve airflow. The combustion face is also fully machined, which can help with how efficiently the engine breathes and burns fuel.

If you're building an engine that will run on alcohol, this valve is specifically recommended for exhaust applications. It's a single valve, so you'll want to make sure you get the correct quantity for your engine rebuild.