Description
Manley packages these Race Master exhaust valves for Chevrolet LS3/L - 99 (L - 92 Head) 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 Set of 8, which should be cross-checked against the rest of the engine combination.
For Chevrolet LS3/L - 99 (L - 92 Head) Small Block, valve diameter changes can alter seat work and chamber/shrouding relationships, while alternate overall lengths can change installed height and rocker geometry.
Key Product Details
- Application: Chevrolet LS3/L - 99 (L - 92 Head) Small Block
- Manley Series: Race Master
- Valve Position: Exhaust
- Title Specification: Set of 8
- Product Family Detail: Race Series application focus
- Manufacturer Part Number: 11621-8
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.