[FITMENT-1] The Rocker Arms and Valve Lifter Kit Compatible with Ford: F150 1997-2010, Explorer 2002-2005, Expedition 1997-2004, Mustang 1996-2004, Excursion 2000-2005, F-250 1997-1999, F-250/350/450/550 Super Duty 1999-2004, F-150 Heritage 2004, Crown Victoria 1992-2001, Thunderbird 1994-1997, E150/250 2003-2014, E-150 Club Wagon 2003-2005, E-150/250 Econoline 1997-2002, E-150/350 Econoline Club Wagon 1997-2002, E-350 Club Wagon 2003-2004
[FITMENT-2] Compatible with Ford: E-350 Econoline 1997-1998, E-350 Super Duty 1999-2019, E-450 Econoline Super Duty 2000-2002, E-450 Super Duty 2003-2019, E-550 Econoline Super Duty 2002, E-550 Super Duty 2003; Compatible with Lincoln: Town Car 1992-2011, Navigator 1998-2004, Aviator 2003-2005, Continental 1995-2002, Mark VIII 1993-1998, Blackwood 2002; Compatible with Mercury: Grand Marquis 1992-2011, Cougar 1994-1997, Mountaineer 2002-2005, Marauder 2003-2004
[RESTORE POWER & EFFICIENCY] Precisely manufactured rocker arms and hydraulic valve lifters maintain accurate valve timing, reduce tapping/knocking noise, and improve throttle response, smoothness, and fuel economy
[PREMIUM QUALITY MATERIALS] Made from high-strength steel with precise machining for excellent wear resistance, heat resistance, and durability, ensuring long service life even under high-load conditions