Engines and Components› Camshafts and Valvetrain
Manley Performance
Manley VALVE-BBC S/D 2.300 EA
SKU: M004 12780-1
Moderate — 2–4 hours
Description
Key features include a 0.050-inch margin width, 0.080-inch seat width, and a 0.311-inch stem diameter. The valve has a 2.300-inch head diameter and a 5-degree dish top. Its underhead angle is 10.00 degrees with a 3/8-inch radius, and it has a tip length of 0.250 inches. This intake valve is intended for automotive use and is marketed for domestic applications.
Fitment
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Specifications
| Brand | Manley Performance |
| Part Number | M004 12780-1 |
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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