What material are these Manley intake valves made from?

These Manley Street Flo intake valves are made from high-quality stainless steel. They also feature chrome stems and hardened 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 improve airflow into the engine's cylinders. This can lead to better combustion efficiency and overall engine performance.

Are these valves a direct replacement for stock?

Yes, these valves are designed as a direct replacement for stock intake valves in Big Block Chevrolet engines. They are part of Manley's Street Series, intended for stock or mildly modified applications.

Specifications

Brand: Manley Performance
Part #: 10728-8
UPC: 807298047300

Manley Big Block Chevrolet Street Flo 2.190 Head Dia Intake Valves

Name: Manley Big Block Chevrolet Street Flo 2.190 Head Dia Intake Valves
Brand: Manley Performance
SKU: manley-performance-manley-big-block-chevrolet-street-flo-2-190-head-dia-intake-v-t14-4327482
Price: 172.21 USD
Availability: BackOrder

$172.21

On Backorder

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

Manley Big Block Chevrolet Street Flo 2.190 Head Dia Intake Valves. Boost performance in stock or mildly modified street engines.

Key Features

Fits Big Block Chevrolet engines.
Designed for stock or mildly modified street engines.
Crafted from high-quality stainless steel for durability.
Features chrome stems and hard tips for increased wear resistance.
Swirl polished under head areas and fully machined combustion faces enhance airflow.
Street Flo shape is designed for improved intake flow.

⚠️ 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 looking to get more airflow into your Big Block Chevrolet engine for street use, these Manley Street Flo intake valves are a solid option. They're designed to help your engine breathe better, especially if you've got a stock or lightly modified setup. Getting more air in is key to making more power, and these valves are built to help you achieve that.

Manley makes these valves from a good grade of stainless steel, so they're built to last. The stems are chrome-plated and the tips are hardened, which helps them stand up to wear and tear over time. They've also taken the time to swirl polish the areas under the head and fully machine the combustion faces. This attention to detail helps improve airflow into the cylinder, making your engine run more efficiently.

These are the Street Flo shape, which is one of the options Manley offers in their Street Series line. They're a direct replacement for your stock intake valves, making the swap straightforward if you're rebuilding your top end.