Cam phasers are specially designed, computer-controlled Cam Gears that automatically optimize Camshaft timing based on the current engine rpm. 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. While this Technology provides tremendous efficiency benefits, such as fuel efficiency and the ability to always be in the best position for maximum power, regardless of engine rpm, it does present some limitations when it comes to performance Camshafts. With such a wide range of valve timing movement, there is very little piston to valve clearance, which limits you to small Cam profiles with little overlap. The U.S. Patented COMP Cams Cam Phaser Limiter Kits for Ford Modular 3V engines restrict the range of Cam timing movement to only 20 degrees, thus providing the necessary valve clearance for Serious performance cams with tighter lobe separations - all while still utilizing the benefits of VVT Technology. Combining this performance modification with more aggressive Cam profiles has resulted in some of the largest upper-rpm gains we've ever seem from such a simple valve train adjustment without sacrificing any bottom end or mid-range performance. Part Number 5449 Includes:Cam Phaser Limiters (2)Limiter ToolSpring Compressor

This Part Fits:

Year	Make	Model	Submodel
2006-2008,2010-2011	Ford	Crown Victoria	Base
2006-2011	Ford	Crown Victoria	LX
2006	Ford	Crown Victoria	LX Sport
2006-2011	Ford	Crown Victoria	Police Interceptor
2006-2007	Lincoln	Town Car	Designer Series
2006-2010	Lincoln	Town Car	Executive
2006-2010	Lincoln	Town Car	Executive L
2006-2007	Lincoln	Town Car	Signature
2006-2010	Lincoln	Town Car	Signature L
2006-2010	Lincoln	Town Car	Signature Limited
2006-2008	Mercury	Grand Marquis	GS
2006-2010	Mercury	Grand Marquis	LS