guess what i am doing ughhhh

You do know you can replace a lifter/s, without taking the manifold off..

You can fish it/them outta the opening in the head, using a magnet,, or hooked tool (bent/filed welding rod), sometimes you have to back out one of the intake bolts, if it protrudes thru the head..

Saves messing around with all the coolant/oil thing, (ughhh stuff), depending on what you need to do..

hope it helps