1973 Dart 318 core plug replacement questions

If you're doing this in your garage or driveway with car up on stands, be prepared for some nasty, rusty coolant raining down when you pop out that plug. You can try to drain the system all you want and even pull out the block plug, but, once you knock that plug loose, prepare for a shower. I use a BIG screw driver that I hammer into the bad plug to pop it loose. Then pry it out, flush the block, and hit the hole with some sand paper or crocus cloth. Let it dry, then coat the hole and new plug with a thin layer of sealer. Drive the new plug back in to where the outer lip is at least flush with the block.....or even better, ever so slightly further in. Refill with coolant, check for leaks, and then go take a shower! :lol: