Description
Engine builders working with Chevrolet Small Block can use this Severe Duty exhaust valve family to choose the required valve dimensions while staying within the correct Manley application group. The parent listing is distinguished by 1.625"; Head / Part #11399-8, which should be cross-checked against the rest of the engine combination.
The correct Chevrolet Small Block valve is the one that matches the finished head. Stem clearance, seat contact, installed height, spring package, and keeper location should all be checked during assembly.
Key Product Details
- Application: Chevrolet Small Block
- Manley Series: Severe Duty
- Valve Position: Exhaust
- Title Specification: 1.625"; Head
- Title Specification: Part #11399-8
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 11399-8
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.