Was getting the 46 ready for spring, and maybe enjoy it a little now that I'm retired and noticed the dreadful milky color oil on the dip stick. Started to brush up on getting ready to pull the head to change the head gasket and noticed a few things of concern. Do you have to put a new line on that goes to the rocker shaft, or can you reuse the old one, and do you need to pump up the oil to the rocker shafts with a drill? I'm rusty on all this as I use to watch my Dad work on these years ago, but forgot a lot of tricks. Any good pointers is appreciated.