Engines and Components› Camshafts and Valvetrain
Manley Performance
Manley VALVE-BBC BRODIX 383 S/D 1.850 EA
SKU: M004 12339-1
Advanced — 4+ hours
Description
Constructed from NK-844 stainless steel, this valve features a swirl-polished finish for improved flow and durability. It has an exhaust valve head diameter of 1.850 inches and an overall length of 5.500 inches, with a standard 0.342-inch stem diameter. The valve is also swirl-polished and features a conventional 1-groove lock groove style.
Fitment
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Specifications
| Brand | Manley Performance |
| Part Number | M004 12339-1 |
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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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