What material are these Manley exhaust valves made from?

These Manley Race Series exhaust valves are constructed from high-quality stainless steel. They also feature chrome stems and hard tips for added durability and wear resistance.

Are these valves suitable for high-performance or racing applications?

Yes, Manley's Race Series valves are built for demanding applications like bracket, drag, and oval track racing, especially for engines operating under 8000 RPM. The materials and machining are intended to handle rigorous use.

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

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

Specifications

Brand: Manley Performance
Part #: 11625-8
UPC: 807298073484

Manley Ford 5.0L DOHC (4 Valve) 31.5mm Head Diameter Triple Groove Master Exhaust Valves (Set Of 8)

Name: Manley Ford 5.0L DOHC (4 Valve) 31.5mm Head Diameter Triple Groove Master Exhaust Valves (Set Of 8)
Brand: Manley Performance
SKU: manley-performance-manley-ford-5-0l-dohc-4-valve-31-5mm-head-diameter-triple-gro-t14-95495
Price: 235.06 USD
Availability: BackOrder

$235.06

On Backorder

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Manley Ford 5.0L DOHC (4 Valve) exhaust valves. Set of 8, 31.5mm head diameter, made from stainless steel for improved durability.

Key Features

Fits Ford 5.0L DOHC (4 Valve) engines.
Set includes eight exhaust valves with a 31.5mm head diameter.
Constructed from stainless steel for improved durability.
Features chrome stems and hard tips for enhanced longevity and wear resistance.
Swirl polished under head areas and fully machined combustion faces optimize airflow.
Recommended for use in alcohol engines.

These valves are designed for Ford 5.0L DOHC (4 Valve) engines. Please verify fitment with your specific engine application.

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About this part

Product Details

If you're rebuilding the top end of your Ford 5.0L DOHC (4 Valve) engine, these Manley Race Series exhaust valves are a solid option. They're designed for engines that see a lot of action, like those in bracket, drag, or oval track racing, especially if you're running up to 8000 RPM. These are the exhaust valves, and they come in a set of eight, ready to go into your cylinder heads.

Manley builds these from a high-quality stainless steel, which is crucial for exhaust valves that deal with a lot of heat and combustion gases. They've also added chrome stems and hard tips to make them last even longer and resist wear. You'll notice the under-head area is swirl polished and the combustion face is fully machined; this helps improve airflow into the cylinder and makes combustion more efficient. These are also recommended if your engine runs on alcohol fuel, as they hold up well in those conditions.