What material are these Manley exhaust valves made from?

These Manley Race Master exhaust valves are constructed from high-quality stainless steel. This material is chosen for its durability and resistance to the high temperatures and stresses found in racing 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 lead to more efficient combustion and better overall engine performance.

Are these valves suitable for all types of engines?

These valves are specifically designed for racing applications, particularly for VW Type IV engines operating under 8000 RPM. They are also recommended for exhaust valves in alcohol engines due to their robust construction.

Specifications

Brand: Manley Performance
Part #: 11659-4
UPC: 807298056609

Manley VW Type IV Single Groove 38mm Race Master Exhaust Valves (Set of 4)

Name: Manley VW Type IV Single Groove 38mm Race Master Exhaust Valves (Set of 4)
Brand: Manley Performance
SKU: manley-performance-manley-vw-type-iv-single-groove-38mm-race-master-exhaust-valv-t14-300124
Price: 109.49 USD
Availability: BackOrder

$109.49

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Manley VW Type IV Race Master Exhaust Valves (Set of 4). Stainless steel construction for durability.

Key Features

Fits VW Type IV engines.
Set of 4 Race Master exhaust valves.
38mm valve size.
Constructed from stainless steel for durability.
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

Manley Performance Race Master exhaust valves are built for demanding VW Type IV engines, especially those running up to 8000 RPM. This set includes four 38mm exhaust valves designed to handle the stress of racing applications like bracket, drag, and oval track events.

These valves are made from high-quality stainless steel, giving them solid durability. The stems are chromed and feature hard tips, which helps them last longer and resist wear. The under-head areas are swirl polished and the combustion faces are fully machined. This design helps improve airflow into the cylinder and makes combustion more efficient. They are also a recommended choice for exhaust valves in alcohol-fueled engines, offering reliable performance when you need it most.