Lifter replacement

first the thing sat- right
if you do pre-oil the lifters you have to turn the motor over with a breaker bar- not the starter at least twice stopping every 90 degrees to let the lifters bleed down with spring pressure- else you can bend things
uh not loose when the valve is closed, just a little tight BVVC if the cam has a reduced base circle with stock rockers- you may need longer pushrods
you can set with adjustable pushrod then check vs your non adjustable pushrods
camgrinder will tell you how much preload you want
and if you are running roller tips or later change to roller tips read
B3 Racing Engines LLC - Mopar Rocker Arm Geometry Tech