What material are these Manley exhaust valves made from?

These Manley Pro Flo exhaust valves are constructed from stainless steel. They also feature chrome stems and hard tips for added durability and wear resistance.

Are these valves suitable for a stock engine rebuild?

Manley's Race Series valves are designed for engines operating under 8000 RPM and are often used in performance and racing applications. They are a well-built component that can be used in a performance-oriented rebuild for your CRX SI.

Do these valves come with any installation hardware?

This set includes 8 Pro Flo exhaust valves. Installation hardware such as valve springs, retainers, or seals are typically sold separately and should be chosen based on your specific engine build requirements.

Specifications

Brand: Manley Performance
Part #: 11383-8
UPC: 807298055671

Manley 88-91 Honda Civic CRX SI 1.6L SOHC 16 Valve (DA16A6) 25mm Pro Flo Exhaust Valves (Set of 8)

Name: Manley 88-91 Honda Civic CRX SI 1.6L SOHC 16 Valve (DA16A6) 25mm Pro Flo Exhaust Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-88-91-honda-civic-crx-si-1-6l-sohc-16-valve-da16a6-25m-t14-4316408
Price: 229.72 USD
Availability: BackOrder

$229.72

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Fits 1988-1991 Honda CRX SI. Manley Pro Flo Exhaust Valves (Set of 8). Stainless steel construction for improved durability.

Key Features

Fits 1988-1991 Honda CRX and 1990-1991 Honda Civic.
Set of 8 Pro Flo exhaust valves for the 1.6L SOHC DA16A6 engine.
Constructed from stainless steel for improved durability.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl polished under-head areas and fully machined combustion faces optimize airflow.
Recommended for alcohol engines, ensuring reliable performance.

⚠️ 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 is well-known for making strong engine components for racing applications. If you're rebuilding the top end of your 1988-1991 Honda CRX SI with the 1.6L SOHC DA16A6 engine, these Manley Pro Flo Exhaust Valves are a solid option. This set includes 8 exhaust valves, designed to handle the demands of performance engines.

These valves are built from stainless steel, which helps them last longer. They also feature chrome stems and hard tips to resist wear, especially important in high-mileage or high-performance builds. The under-head areas are swirl polished and the combustion faces are fully machined. This design helps improve airflow into the cylinder, which can make a difference in how efficiently your engine runs.

While these are Race Series valves, suitable for engines under 8000 RPM, they are also recommended for alcohol-fueled engines. If you're working on a performance build for your CRX, these valves are a well-made choice to consider.