Hehe Streets, thats almost how I disassemble the whole valve setup. Beat on the tops with a socket or round unit and the retainer and locks just pop off....sometimes all the way across the garage. Hmm, motor had about 1500k on it though, and I would have thought theyyss was seated well, but that damn ol' hardened steel retainer...couple of them....snapped into two pieces. If there is some significant damage to the unit I'm gonna toss in a forged stroker crank, salvage my rods, get some lower compression pistons, keep the heads, but do some more port work and BETTER RETAINERS!! and put some forced induction on the beast. Oh, and not to mention the new valves...