5pcs 3mm Dia Thread 50mm Length Gray Steel Tight Adjustable Pushrod

we're going to talk about push right adjustment and before we do that I want to talk a little bit about the I guess some of the anatomy of the lifter or give people a visual on what you're actually doing when you adjust a push rod so what we have here is a a stock twin-cam lifter it's been cut away so that you can kind of see the internals basically you have a spring a one-way valve up here in this this piston body and then you have the cup for the push rod to fit into in the top and a retaining pin okay and so what you're doing when you're adjusting the push rod is the gap between the piston and the bottom of the lifter you're closing that gap and so for the lifter to do its job and adjust or compensate for the growth and engine height and it's things warm up and change distances the hydraulic lifter of course this travel has to change and and take all the valve lash so that your valve