Section 15 (2.7L Engine (Service Information)): Springs-Valve: Description
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
The valve springs (3) are made from high strength, chrome-silicon steel. The springs are common for intake and exhaust applications. The valve spring seat is integral with the valve stem seal (4), which incorporates a garter spring to maintain consistent lubrication control to the valve stem.