What material are these Manley intake valves made from?

These Manley intake valves are constructed from stainless steel. They also feature chrome stems and hard tips for added durability and wear resistance.

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 help optimize airflow into the cylinder. This can contribute to improved combustion efficiency in your engine.

Are these valves suitable for street use or only racing?

Manley's Race Series valves are meticulously engineered for demanding racing applications like bracket, drag, and oval track racing, operating under 8000 RPM. While they offer superior durability, they are primarily intended for performance racing engines.

Specifications

Brand: Manley Performance
Part #: 11612B-8
UPC: 807298073279

Manley Ford 6.2L Race Master Intake Valves 54.5mm B/L (Set of 8)

Name: Manley Ford 6.2L Race Master Intake Valves 54.5mm B/L (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-ford-6-2l-race-master-intake-valves-54-5mm-b-l-set-of--t14-349213
Price: 223.87 USD
Availability: BackOrder

$223.87

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Manley 6.2L Race Master Intake Valves (Set of 8). Stainless steel construction with chrome stems and hard tips for enhanced longevity.

Key Features

Fits Ford 6.2L engines.
Set includes 8 intake valves.
Constructed from stainless steel for 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.
Race Master (straight stem) shape is suitable for specific racing engine builds.

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About this part

Product Details

If you're rebuilding the top end of your Ford 6.2L engine, especially for racing applications, these Manley Race Master intake valves are a solid option. They're designed for engines that see a lot of action, typically running up to 8000 RPM, and are a popular choice for bracket, drag, and oval track racers.

These intake valves are made from stainless steel, which is a strong material that holds up well. They also feature chrome stems and hard tips, adding to their durability and resistance to wear over time. The under-head area is swirl polished and the combustion faces are fully machined. This design helps improve airflow into the cylinder and can contribute to better combustion efficiency. Manley offers these in a Race Master (straight stem) shape, which is what you're looking at here, to fit specific racing engine builds.

This set includes eight intake valves, enough for a full V8 engine. They are also recommended for use in alcohol-fueled engines, particularly for the exhaust valves, where they can handle the demanding conditions.