Description
This Manley Severe Duty Pro Flo intake valve family is intended for Chevrolet L83 5.3L builds where valve dimensions need to be matched deliberately to the cylinder head, seat work, and valvetrain geometry. The parent listing is distinguished by 1.930"; Head / Set of 8, which should be cross-checked against the rest of the engine combination.
The correct Chevrolet L83 5.3L 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 L83 5.3L
- Manley Series: Severe Duty Pro Flo
- Valve Position: Intake
- Title Specification: 1.930"; Head
- Title Specification: Set of 8
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 12358-8
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.