Description
Manley packages these Severe Duty exhaust valves for Chevrolet Small Block around the measurements that matter during cylinder-head setup, rather than treating every valve size as a separate shopping path. The parent listing is distinguished by 1.600"; Head / Part #11749-8, which should be cross-checked against the rest of the engine combination.
If the Chevrolet Small Block 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: Chevrolet Small Block
- Manley Series: Severe Duty
- Valve Position: Exhaust
- Title Specification: 1.600"; Head
- Title Specification: Part #11749-8
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 11749-8
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
Use the finished cylinder-head setup as the authority for selection. Oversize valves or alternate lengths may require machining and can affect installed height and valvetrain geometry.
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.