What material are these Manley exhaust valves made from?

These Manley Race Master exhaust valves are constructed from stainless steel. This material is chosen for its durability and ability to withstand the high temperatures found in exhaust systems.

Are these valves suitable for high-RPM engines?

These valves are designed for engines operating under 8000 RPM. They are a popular choice for bracket, drag, and oval track racing applications where consistent performance is needed.

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

The swirl polished under-head areas and fully machined combustion faces are designed to optimize airflow into the cylinder and improve combustion efficiency. This can contribute to better overall engine performance.

Specifications

Brand: Manley Performance
Part #: 11157-8
UPC: 807298023502

Manley Toyota Scion tC 2.4L (2AZFE) DOHC 16 Exhaust 29.5mm Stainless Race Master Valves

Name: Manley Toyota Scion tC 2.4L (2AZFE) DOHC 16 Exhaust 29.5mm Stainless Race Master Valves
Brand: Manley Performance
SKU: manley-performance-manley-toyota-scion-tc-2-4l-2azfe-dohc-16-exhaust-29-5mm-stai-t14-5557
Price: 229.72 USD
Availability: BackOrder

$229.72

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Fits 2008-2014 Scion xB. Manley Race Master exhaust valves are made from stainless steel for durability.

Key Features

Fits 2008-2014 Scion xB, 2005-2008 Scion tC, 2005-2006 Toyota Camry, and 2002-2008 Toyota Solara.
Constructed from stainless steel for strong durability.
Features chrome stems and hard tips for enhanced wear resistance.
Swirl polished under-head areas and fully machined combustion faces help optimize airflow and combustion efficiency.
This is the Race Master (straight stem) style valve.
Recommended for exhaust valve 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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Will this fit your vehicle?

About this part

Product Details

When you're rebuilding the top end of your 2008-2014 Scion xB or a compatible Toyota model, you need components that can handle the heat and stress. These Manley Race Master exhaust valves are built for engines that see regular use, especially those running on alcohol fuels. They're a well-built option for racers and serious DIYers looking for reliable performance.

You're getting a set of exhaust valves constructed from durable stainless steel, which is crucial for resisting the high temperatures exhaust gases create. The stems are chrome-plated for improved wear resistance, and the under-head areas are swirl polished to help smooth airflow into the cylinder. The combustion face is also fully machined, which can contribute to better combustion efficiency. These are the 'Race Master' straight stem style, designed to fit specific racing engine configurations.

If you're working on an engine that operates under 8000 RPM and you want a solid exhaust valve option, these Manley valves are a popular choice. They are specifically recommended for exhaust valve use in alcohol-fueled engines, where durability is key.