Pull the lifter up enough that it will clear the cam journals, remove the cam, push the lifter down through its bore and let it fall out the bottom. If it won't come up enough to clear the journal, use a die grinder ond grind the sides smooth to where it will come up higher, a pain in the arse, but it will work. If you force the lifter out its bore, chances are you will distort or gouge it and the lifter bore will need to be resleeved. TIMINATOR