Sale

Supertech

Inconel Performance Exhaust Valves, 30V

$445.99 $280.00 Save $165.99

SKU: st-30v

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

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

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSupertech
Part Numberst-30v
CategoryEngines and Components

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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