273 valve seal change

I use the K-D overhead cam spring compressor that you use for many engine with valve adjusting pucks. You just use the rocker arm shaft as the pivot point. I've done it with air and with the rope. Both work fine if you're careful. You definitely don't want to drop a valve inside, or, you're going to be pulling the heads anyway. I've recommend the rope if you've never done it before. Tie a big washer onto one end of the rope so you don't accidentally push the entire rope inside. Tapping on the valve spring retainer with a hammer will help break the keepers loose when you press on the spring. Definitely turn the engine over by hand.