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Engines and Components› Camshafts and Valvetrain

Supertech

Inconel Performance Exhaust Valves, 30V

Name: Inconel Performance Exhaust Valves, 30V
Brand: Supertech
SKU: st-30v

$445.99 $405.00 Save $40.99

SKU: st-30v

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Overview

The Supertech ST-30V is a set of 12 Inconel performance exhaust valves designed for 30V cylinder head builds. These valves offer superior reliability and heat resistance compared to OEM stainless or sodium-filled valves, making them suitable for turbo and nitrous applications.

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The Supertech ST-30V is a performance exhaust valve set containing 12 Inconel valves, specifically designed as a robust starting point for 30V cylinder head builds. These Inconel valves provide significantly greater reliability and heat resistance than traditional OEM stainless steel or sodium-filled exhaust valves, which are prone to crumbling under stress. For builders aiming for the absolute highest levels of performance, Supertech also offers these valves in a +1mm oversize option, which requires machine work but maximizes flow potential. Additionally, single groove keeper setups are available for applications requiring extremely high RPM stability, as these grip the valve shaft directly for enhanced security.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

Brand	Supertech
Part Number	st-30v
Category	Engines and Components

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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