MMR Adjustable LIFTER for 4.6 / 5.4 2V, 3V and 4V

MMR Adjustable LIFTER for 4.6 / 5.4 2V, and 4V This Lifter is needed to correctly degree and test valvetrain events. This lifter will also help determine Piston to Valve clearance when adding any aftermarket cam. Adjusted through the rocker arm with a simple allen wrench. A MUST WHEN CHECKING PISTON TO VALVE CLEARANCE