I have always just used a small brass drift and a light ball peen hammer,set the head on 2 x 4's and knocked them through. This way I could inspect the valves and seats to see if I could get away with just lapping them or if I need to have them ground at a machine shop. Make sure you put the same valve back in the same hole. Machine shops used to give you a yard stick with holes drilled in it so you could keep them in order. But that was in the old days, I doubt if they still do it.

David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA

"Serenity through Sobriety"