What is Inconel and why is it used for exhaust valves?

Inconel is a high-nickel alloy that offers excellent strength and resistance to extreme heat and corrosion. This makes it a superior material for exhaust valves, which are subjected to very high temperatures and harsh combustion gases.

What is the benefit of +1mm oversized valves?

Increasing the valve diameter by 1mm allows for a larger opening, which can improve the flow of exhaust gases out of the cylinder. This improved flow can contribute to better engine performance.

Are these valves sold individually or as a set?

The product listing is for individual valves. Please check the quantity needed for your specific engine build and adjust your order accordingly.

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Brian Crower Valves - 27mm (+1mm) Inconel Exhaust - Yamaha YXZ / Tetron XX

Specifications

Brand: Brian Crower
Part #: BC3853N

Brian Crower Valves - 27mm (+1mm) Inconel Exhaust - Yamaha YXZ / Tetron XX

Name: Brian Crower Valves - 27mm (+1mm) Inconel Exhaust - Yamaha YXZ / Tetron XX
Brand: Brian Crower
SKU: brian-crower-brian-crower-valves-27mm-1mm-inconel-exhaust-yamaha-yxz-tetron-xx-t14-489064
Price: 101.38 USD
Availability: BackOrder

$101.38

On Backorder

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

Brian Crower Valves - +1mm oversized Inconel exhaust valves for Yamaha YXZ / Tetron XX.

Key Features

Fits Yamaha YXZ and Tetron XX.
27mm diameter exhaust valves.
Oversized by +1mm compared to stock.
Constructed from heat-resistant Inconel alloy.
Designed for improved exhaust flow.

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Product Details

These 27mm Inconel exhaust valves from Brian Crower are a full millimeter larger than stock, designed for the Yamaha YXZ and Tetron XX. Inconel is a high-nickel alloy known for its exceptional strength and resistance to extreme heat, making it ideal for exhaust valve applications where temperatures can get very high.

By increasing the valve diameter by 1mm, you can improve airflow into the cylinder, which can lead to better performance. The Inconel material itself is crucial for durability under the harsh conditions found in performance exhaust systems. Brian Crower is a well-known name for performance engine components, and these valves are built to handle the demands of modified engines.