What material are these valves made from?

These Manley Race Master 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 street use?

These valves are part of Manley's Race Series, meticulously engineered for the rigorous demands of bracket, drag, and oval track racers operating under 8000 RPM. While they are well-built, they are primarily intended for performance and racing applications.

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

The Race Master shape features a straight stem, while the Race Flo shape has a different profile. You should choose the shape that best suits your specific racing engine's requirements for optimal performance.

Specifications

Brand: Manley Performance
Part #: 11639B-8
UPC: 807298062501

Manley Ford 4.6L/5.4L SOHC (2 Valve) 1999+ Bead Loc Groove 37mm Race Master Exhaust Valve - Set of 8

Name: Manley Ford 4.6L/5.4L SOHC (2 Valve) 1999+ Bead Loc Groove 37mm Race Master Exhaust Valve - Set of 8
Brand: Manley Performance
SKU: manley-performance-manley-ford-4-6l-5-4l-sohc-2-valve-1999-bead-loc-groove-37mm--t14-419963
Price: 235.06 USD
Availability: BackOrder

$235.06

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Manley Ford 4.6L/5.4L SOHC (2 Valve) 1999+ Bead Loc Groove 37mm Race Master Exhaust Valve - Set of 8. Built for demanding racing applications.

Key Features

Fits Ford 4.6L and 5.4L SOHC 2-valve engines from 1999 and newer.
Set includes 8 Race Master exhaust valves with straight stems.
Constructed from stainless steel for durability.
Chrome stems and hard tips offer enhanced wear resistance.
Swirl polished under-head areas and fully machined faces help optimize airflow.
Recommended for exhaust valves in alcohol engines.

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About this part

Product Details

Manley Performance is well-known for making strong internal engine components for racing. If you're rebuilding the top end of your Ford 4.6L or 5.4L SOHC 2-valve engine from 1999 and newer, these Race Master exhaust valves are a solid option. They're designed to handle the stress of engines running up to 8000 RPM, making them suitable for bracket, drag, and oval track racing.

These valves are made from stainless steel, which is a durable material for exhaust components. The stems are chrome-plated and feature hard tips to resist wear, helping them last longer in your engine. Manley also swirl polishes the under-head areas and fully machines the faces to help improve airflow and combustion efficiency. They are specifically recommended for exhaust valves in alcohol-fueled engines, where they can handle the unique demands.

This set includes 8 exhaust valves, and they are the Race Master straight stem style. If you're looking for well-built valves to handle high-RPM use in your Ford modular engine, these are a good choice.