What material are these exhaust valves made from?

These Manley exhaust valves are constructed from XH-426 stainless steel, a material chosen for its durability and resistance to high temperatures. The stems are chrome-plated and the tips are hardened for added wear resistance.

Are these valves suitable for all RB26DETT engine builds?

These are specifically designed as exhaust valves for the Nissan RB26DETT 2.6L engine, intended for builds operating under 8000 RPM. They are also recommended for alcohol engines. You will need to select appropriate intake valves separately.

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 optimize airflow. This helps exhaust gases exit the cylinder more efficiently, contributing to better combustion performance.

Specifications

Brand: Manley Performance
Part #: 11163-12
UPC: 807298002118

Manley Nissan 2.6L Inline 6-24 Valve (RB26DET/T) Exhaust 30.15mm Stainless Race Flo Valves

Name: Manley Nissan 2.6L Inline 6-24 Valve (RB26DET/T) Exhaust 30.15mm Stainless Race Flo Valves
Brand: Manley Performance
SKU: manley-performance-manley-nissan-2-6l-inline-6-24-valve-rb26det-t-exhaust-30-15m-t14-252896
Price: 488.42 USD
Availability: BackOrder

$488.42

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Manley Performance RB26DETT exhaust valves. 30.15mm stainless steel Race Flo style for improved airflow.

Key Features

Fits Nissan 2.6L Inline 6-24 Valve (RB26DET/T) engines.
Exhaust valves measure 30.15mm in diameter with a Race Flo shape.
Constructed from durable XH-426 stainless steel for longevity.
Chrome-plated stems and hardened tips enhance wear resistance.
Swirl-polished under-head areas and fully machined faces improve airflow.
Recommended for exhaust valves in alcohol-fueled engines.

⚠️ 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 Nissan RB26DETT engine, these Manley Race Series exhaust valves are a solid choice. They're specifically designed for the 2.6L inline 6-24 valve configuration, measuring 30.15mm in diameter and featuring the Race Flo shape to help optimize airflow through the exhaust ports.

These valves are built from XH-426 stainless steel, which is known for its durability, especially in high-heat applications. The stems are chrome-plated for better wear resistance, and the tips are hardened to stand up to repeated valve action. Manley also swirl polishes the under-head areas and fully machines the combustion faces, which helps improve how smoothly exhaust gases exit the cylinder. They're even recommended for use in alcohol-fueled engines, showing their resilience in demanding conditions.

These are the exhaust valves, so make sure you pair them with the correct intake valves for your build. They're a well-built component for engines running under 8000 RPM.