Engines and Components› Cylinder Heads and Components

Manley Performance

Manley Gen II Race Series 32.0mm Custom SS Exhaust Valves (Set of 8)

$836.56

SKU: M004 11223-8

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Description

The Manley Performance 11223-8 are XtremeAlloy Gen II custom exhaust valves, designed for high-performance engine applications. This set of 8 valves features an XtremeAlloy material, a 15° x 1/2” underhead angle/radius, and a .080 margin, with a 0.1" seat width.

Fitment

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Specifications

BrandManley Performance
Part NumberM004 11223-8

Videos

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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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