After you pull the timing chain and the pushrods, quickly spin the cam a few times. The lifter bores are almost parallel with the ground. The oil surrounding them in the bores will hold them up out of the way.
be really careful if you do the cam without anything to hold the lifters......I know alot of guys have done it ......but I also know alot of guys that spun the cam only to have the lifters slide back down.If one does drop you will be pulling the motor.