Description
This Severe Duty Pro Flo exhaust valve listing is organized specifically for Chevrolet L83 5.3L, with the available dimensions presented as selectable configurations for easier cylinder-head planning. The parent listing is distinguished by 1.560"; Head / Set of 8, which should be cross-checked against the rest of the engine combination.
If the Chevrolet L83 5.3L 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 L83 5.3L
- Manley Series: Severe Duty Pro Flo
- Valve Position: Exhaust
- Title Specification: 1.560"; Head
- Title Specification: Set of 8
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 12361-8
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.