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Engines and Components› Camshafts and Valvetrain

Supertech

Supertech Honda B18A/B18B Black Nitrided Exhaust Valve - +0.5mm Oversize - Set of 8

$225.37 $180.35 Save $45.02

SKU: S00P HEVN-1004-8

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Non-Returnable Item
INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

The Supertech HEVN-1004-8 is a set of stainless steel Black Nitride (BN) exhaust valves. These valves are constructed from EV8/21-4N stainless steel, offering high strength at elevated temperatures and excellent fatigue resistance. The Black Nitride surface provides a low-friction, wear-resistant finish for smoother operation and increased durability.

Each valve features hardened tips, controlled stems, and a swirl-polished head for improved performance and longevity.

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 NumberS00P HEVN-1004-8

Buy with Confidence

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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