What material are these Manley intake valves made from?

These Manley intake valves are constructed from high-quality stainless steel. This material is chosen for its durability and ability to withstand the high temperatures and stresses found in an engine's combustion chamber.

Are these valves suitable for high-RPM use?

The Manley Race Series valves, including these Race Master models, are designed for engines operating under 8000 RPM. They are built to handle the demands of racing applications.

What is the purpose of the swirl polishing and machined faces?

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

Specifications

Brand: Manley Performance
Part #: 12628-8
UPC: 807298121079

Manley Ford Modular Coyote 5.0L Gen III Race Master Series Intake Valve Set - 1.485in Dia

Name: Manley Ford Modular Coyote 5.0L Gen III Race Master Series Intake Valve Set - 1.485in Dia
Brand: Manley Performance
SKU: manley-performance-manley-ford-modular-coyote-5-0l-gen-iii-race-master-series-in-t14-1006361
Price: 235.06 USD
Availability: InStock

$235.06

Only 4 left in stock

Manley Ford Coyote 5.0L Gen III Race Master intake valves. 1.485in dia, stainless steel construction for durability.

Key Features

Fits Ford Modular Coyote 5.0L Gen III engines.
Constructed from durable stainless steel for longevity.
Chrome stems and hard tips enhance wear resistance.
Swirl polished under head areas and machined combustion faces optimize airflow.
Race Master series features a straight stem design.
Recommended for use in alcohol engines.

This intake valve set is specifically designed for Ford Modular Coyote 5.0L Gen III engines. Always confirm compatibility with your specific engine build.

⚠️ 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 your Ford Modular Coyote 5.0L Gen III engine, these Manley Race Master Series intake valves are a solid option. They're built from stainless steel, which is key for handling the heat and stress inside the combustion chamber, especially if you're running alcohol fuels. The stems are chromed and have hard tips, adding extra wear resistance where it counts for long-term durability.

Manley put some thought into airflow, too. These valves are swirl polished under the head and have fully machined combustion faces. This helps smooth out the air going into the cylinder and can improve how efficiently the fuel burns. The Race Master series features a straight stem design, which is a common choice for many racing applications running under 8000 RPM.

This set includes 8 intake valves, each measuring 1.485 inches in head diameter and 0.2355 inches in stem diameter, with an overall length of 4.765 inches. They're a well-built component designed for engines that see a lot of action on the track or strip.