Cam phasers are specially designed, computer-controlled cam gears that automatically optimize camshaft timing based on the current engine rpm. Currently they are used in all 2005 and newer Ford Modular 3 Valve and all 2007 and newer GM L92 engines. Engine oil is pressure fed to the cam phasers through a series of passageways in the cylinder heads and camshafts. The engine computers control solenoids that adjust this oil flow into and out of the phaser's control chambers, giving the ability to retard the cams up to 60 crank degrees.
Our VVT limiter kit for '05+ Ford 4.6/5.4L 3 valve engines comes with 2 phaser limiters, a VVT spring compressor, VVT spring lock tool and the instructions required for proper installation. This kit limits cam movement to 20 degrees.
Cam Phaser Limiter Kits for 4.6L/5.4L Modular 3 Valve Ford Engines, 2005 and newer; Restrict the range of cam timing to provide necessary valve clearance for performance camshafts; Aid in creating serious upper rpm horsepower gains without sacrificing any bottom end or mid-range performance

Fitment:
Ford Crown Victoria Base 2006
Ford Crown Victoria Base 2007
Ford Crown Victoria Base 2008
Ford Crown Victoria Base 2010
Ford Crown Victoria Base 2011
Ford Crown Victoria LX 2006
Ford Crown Victoria LX 2007
Ford Crown Victoria LX 2008
Ford Crown Victoria LX 2009
Ford Crown Victoria LX 2010
Ford Crown Victoria LX 2011
Ford Crown Victoria LX Sport 2006
Ford Crown Victoria Police Interceptor 2006
Ford Crown Victoria Police Interceptor 2007
Ford Crown Victoria Police Interceptor 2008
Ford Crown Victoria Police Interceptor 2009
Ford Crown Victoria Police Interceptor 2010
Ford Crown Victoria Police Interceptor 2011
Lincoln Town Car Designer Series 2006
Lincoln Town Car Designer Series 2007
Lincoln Town Car Executive 2006
Lincoln Town Car Executive 2007
Lincoln Town Car Executive 2008
Lincoln Town Car Executive 2009
Lincoln Town Car Executive 2010
Lincoln Town Car Executive L 2006
Lincoln Town Car Executive L 2007
Lincoln Town Car Executive L 2008
Lincoln Town Car Executive L 2009
Lincoln Town Car Executive L 2010
Lincoln Town Car Signature 2006
Lincoln Town Car Signature 2007
Lincoln Town Car Signature L 2006
Lincoln Town Car Signature L 2007
Lincoln Town Car Signature L 2008
Lincoln Town Car Signature L 2009
Lincoln Town Car Signature L 2010
Lincoln Town Car Signature Limited 2006
Lincoln Town Car Signature Limited 2007
Lincoln Town Car Signature Limited 2008
Lincoln Town Car Signature Limited 2009
Lincoln Town Car Signature Limited 2010
Mercury Grand Marquis GS 2006
Mercury Grand Marquis GS 2007
Mercury Grand Marquis GS 2008
Mercury Grand Marquis LS 2006
Mercury Grand Marquis LS 2007
Mercury Grand Marquis LS 2008
Mercury Grand Marquis LS 2009
Mercury Grand Marquis LS 2010