Melling Drop in performance valve springs - full set 16 130lb @ 1.8¨ (NOTE: some 6.4 engines use a 2.050¨ installed height check before ordering) 348lb @ 1.23¨ Max lift .600¨

Chrysler 300 SRT-8 (347kW) 2012 - 2015 6.4L (check install height before ordering) Chrysler 300 SRT-8 Core (347kW) 2013 - 2015 6.4L   (check install height before ordering) Chrysler 300C (250Kw) 2005 - 2010 5.7L Chrysler 300C (250Kw) 2009 - 2011 5.7L Jeep Commander XH (240Kw) 2006 - 2010 5.7L Jeep Grand Cherokee SRT-8 WK (344kW) 2011 - 2019 6.4L   (check install height before ordering) Jeep Grand Cherokee WH (240Kw) 2005 - 2011 5.7L Jeep Grand Cherokee WH (259Kw) 2010 - 2011 5.7L Jeep Grand Cherokee WK (259Kw) 2011 - 2012 5.7L