Manley spring cups for 2009+ Hemi 5.7L engines provide a precise fit with a 1.311in inner diameter to interface with aftermarket valvetrain components. These retainers and cups are intended for high-performance applications where trusted, accurate dimensions matter for proper valve-spring seating. Sold to support engine builders and installers, they fit into established valvetrain assemblies and are specified for use with compatible Manley components.
Manley 09+ Hemi 5.7L Spring Cup ID 1.311