COMP Cams Spring Seat - 03-08 Dodge Hemi 5.7/6.1LMade from a hardened steel alloy, these spring seats ensure your valve springs stay in place during high RPM operation, and that they do not damage the head. Made specifically for use with Dodge 5. 7 6. 1 w conical style valve springs. This Part Fits: Year Make Model Submodel 2005 2007 Chrysler 300 C 2005 2007 Chrysler 300 C SRT8 2007 Chrysler Aspen Limited 2006 Dodge Charger Daytona R T 2006 2007 Dodge Charger Pursuit 2006 2007 Dodge Charger R T 2006