Description
This Manley Race Flo exhaust valve family is intended for Chevrolet Big Block Stock 3/8"; Stem Diameter builds where valve dimensions need to be matched deliberately to the cylinder head, seat work, and valvetrain geometry. Use the exact Manley part number shown below to distinguish this product from similar valves offered for the same or related engine family.
The correct Chevrolet Big Block Stock 3/8"; Stem Diameter 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 Big Block Stock 3/8"; Stem Diameter
- Manley Series: Race Flo
- Valve Position: Exhaust
- Product Family Detail: Race Series application focus
- Manufacturer Part Number: 11517-8
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.