What material are these exhaust valves made from?

These Manley exhaust valves are constructed from stainless steel, specifically an XH-426 alloy. This material is chosen for its durability and resistance to the high heat and corrosive gases found in the exhaust stream.

Are these valves suitable for all types of engines?

These valves are designed for demanding applications, including bracket, drag, and oval track racing engines operating under 8000 RPM. They are also specifically recommended for exhaust valves in alcohol engines.

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 improve airflow into the cylinder. This can contribute to more efficient combustion and potentially better engine performance.

Specifications

Brand: Manley Performance
Part #: 11703-8
UPC: 807298043449

Manley Severe Duty Stainless Steel Exhaust Valves Chrysler V8 1.600 - Set of 8

Name: Manley Severe Duty Stainless Steel Exhaust Valves Chrysler V8 1.600 - Set of 8
Brand: Manley Performance
SKU: manley-performance-manley-severe-duty-stainless-steel-exhaust-valves-chrysler-v8-t14-4337953
Price: 218.97 USD
Availability: BackOrder

$218.97

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Manley Severe Duty Stainless Steel Exhaust Valves for Chrysler V8. Set of 8. Optimized airflow and durability.

Key Features

Fits Chrysler V8 engines with a 1.600 inch valve diameter.
Constructed from durable stainless steel for the exhaust side.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl polished under-head areas and fully machined combustion faces help optimize airflow.
Recommended for use in alcohol engines.
Designed for engines operating under 8000 RPM.

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About this part

Product Details

If you're rebuilding the top end of a Chrysler V8 engine, especially one that sees a lot of hard use, you'll want to consider these severe duty exhaust valves from Manley Performance. These aren't your average valves; they're built to handle the stress of engines running up to 8000 RPM, making them a solid choice for performance builds.

What sets these apart is their construction. They're made from stainless steel, which is a strong material that resists the heat and corrosive elements exhaust gases can create. The stems are chromed and have hard tips, adding extra wear resistance where it counts. Manley also swirl polishes the under-head areas and fully machines the combustion faces. This attention to detail helps improve airflow into the cylinder and can contribute to better combustion efficiency.

These valves are also specifically recommended for exhaust valve use in alcohol-fueled engines, which tend to run hotter and can be more aggressive on components. If you're looking for well-built valves that can stand up to demanding conditions, these Manley units are a popular option.