Description
Engine builders working with Chevrolet Big 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 1.940"; Head / Part #11803-8, which should be cross-checked against the rest of the engine combination.
For Chevrolet Big 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 Big Block
- Manley Series: Severe Duty
- Valve Position: Exhaust
- Title Specification: 1.940"; Head
- Title Specification: Part #11803-8
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 11803-8
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
Confirm head diameter, overall length, stem diameter, keeper/groove style, seat compatibility, and installed-height requirements with your cylinder-head specification before ordering.
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.