Description
Engine builders working with Chevrolet LS1/LS2 (LS - 6) Head Small Block / Hollow can use this Severe Duty Pro Flo intake valve family to choose the required valve dimensions while staying within the correct Manley application group. 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 LS1/LS2 (LS - 6) Head Small Block / Hollow 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 LS1/LS2 (LS - 6) Head Small Block / Hollow
- Manley Series: Severe Duty Pro Flo
- Valve Position: Intake
- Product Family Detail: Severe Duty application focus
- Manufacturer Part Number: 11682H-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.