What material are these Manley valves made from?

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

What is the benefit of the swirl-polished under-head area?

The swirl-polished under-head area helps to improve airflow into the combustion chamber. This is part of the design to optimize combustion efficiency for racing engines.

Are these valves suitable for all types of engines?

These Race Flo valves are specifically designed for racing engines operating under 8000 RPM, such as those used in bracket, drag, and oval track racing. They are also recommended for alcohol engines, especially for exhaust valve applications.

Specifications

Brand: Manley Performance
Part #: 11506-8
UPC: 807298049168

Manley Small Block Chevy 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)

Name: Manley Small Block Chevy 3/8in Stem Diameter Race Flo Intake Valves (Set of 8)
Brand: Manley Performance
SKU: manley-performance-manley-small-block-chevy-3-8in-stem-diameter-race-flo-intake--t14-4317498
Price: 218.97 USD
Availability: BackOrder

$218.97

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Manley Performance Race Flo Intake Valves (Set of 8) for Small Block Chevy. Stainless steel construction for durability.

Key Features

Fits Small Block Chevy engines.
Set includes 8 intake valves.
Features a 3/8 inch stem diameter.
Constructed from durable stainless steel.
Chrome stems and hard tips enhance longevity and wear resistance.
Swirl-polished under-head areas and fully machined combustion faces optimize airflow.

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About this part

Product Details

Manley Performance is well-known for making strong engine components for racing applications. These Race Flo intake valves are built for Small Block Chevy engines, specifically for racers who push their engines up to 8000 RPM in bracket, drag, and oval track events.

These valves are made from stainless steel, which holds up well over time. They have chrome-plated stems and hard tips to resist wear, and the under-head area is swirl-polished to help air move smoothly. The combustion face is also fully machined, which helps improve how efficiently the engine burns fuel. The Race Flo shape is one of the options Manley offers to help you tune your engine for specific needs.

If you're rebuilding the top end of your Small Block Chevy and need reliable intake valves for a performance build, these are a solid option. They are also recommended for use in alcohol-fueled engines, particularly for the exhaust side, due to their robust construction.