What material are these valves made from?

These Manley exhaust valves are constructed from stainless steel, which offers good durability for engine components. They also feature chrome stems and hard tips for added wear resistance.

Are these valves suitable for alcohol engines?

Yes, these specific exhaust valves are recommended by Manley for use in alcohol engines. They are designed to perform reliably under those demanding conditions.

What is the difference between Race Master and Race Flo valves?

The Race Master valves, like this set, feature a straight stem design. Race Flo valves have a different shape, so you'd choose based on your specific engine build and airflow requirements.

Specifications

Brand: Manley Performance
Part #: 11655-4
UPC: 807298047096

Manley VW 1200-1600 Triple Groove 37.5mm Race Master Exhaust Valves (Set of 4)

Name: Manley VW 1200-1600 Triple Groove 37.5mm Race Master Exhaust Valves (Set of 4)
Brand: Manley Performance
SKU: manley-performance-manley-vw-1200-1600-triple-groove-37-5mm-race-master-exhaust--t14-4308879
Price: 109.49 USD
Availability: BackOrder

$109.49

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Manley VW 1200-1600 Triple Groove 37.5mm Race Master Exhaust Valves (Set of 4). These stainless steel valves are built for high-RPM engine performance.

Key Features

Fits VW 1200-1600 engines.
Set of 4 Race Master exhaust valves.
37.5mm head diameter with triple grooves.
Constructed from durable stainless steel.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl polished under-head areas and fully machined combustion faces optimize airflow.

⚠️ 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 a VW 1200-1600 engine, especially for racing applications under 8000 RPM, these Manley Race Master exhaust valves are a solid option. They're designed to handle the stress of bracket, drag, and oval track racing.

These valves are made from stainless steel, which is a strong choice for exhaust components. They also feature chrome stems and hard tips to help them last longer and resist wear, even when you're pushing the engine hard. The under-head area is swirl polished and the combustion face is fully machined, which helps improve airflow into the cylinder and can contribute to better combustion efficiency. Manley offers these in a Race Master straight stem design, which is what you're looking at here.

These are specifically recommended for exhaust valves in alcohol-fueled engines, where they can offer reliable performance in demanding conditions.