Description
This Severe Duty exhaust valve listing is organized specifically for BBC Stainless Steel, with the available dimensions presented as selectable configurations for easier cylinder-head planning. The selectable configurations in this family are separated by head diameter, so the final SKU should be chosen from the dimensional requirements of the build.
If the BBC Stainless Steel cylinder head has been ported, fitted with oversized seats, or changed from its original valvetrain layout, confirm the required valve measurements after machining rather than using a stock-size assumption.
Key Product Details
- Application: BBC Stainless Steel
- Manley Series: Severe Duty
- Valve Position: Exhaust
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Numbers: Vary by selected configuration (2 SKUs in this parent family)
Available Configurations
This parent listing contains multiple selectable Manley SKUs. Choose the configuration that matches the measured engine or cylinder-head specification.
- Head Diameter: 2.250in, 1.880in
Package Quantity
Set of 8 valves. The selected configuration is supplied as a 8-piece valve package. This quantity applies to the selected Manley SKU family shown on this product page.
Selection & Fitment Notes
Valve fitment should be verified from the cylinder head itself; check the required head size, stem size, overall length, seat work, and valvetrain geometry rather than relying on engine name alone.
Professional engine assembly and measurement are recommended. Product specifications should be confirmed against the selected Manley part number and the requirements of the exact engine build.