If you put the front of your car on jack stands and get it from underneath is should'nt be a problem. Find and open end wrench (15mm I think) and a breaker bar, maybe spray a little PB blaster on it! You really need to flush the block especially if the radiator was nasty. Its worth it to do it right the first time then you don't have to worry about it for a couple of years. Good luck, let me know if you need further help.
1957 Dodge D100
1967 VW Microbus 21 Window
2004 Beach cruiser bicycle
"It cannot be emphasized too strongly or too often that this great nation was founded not by religionists, but by Christians; not on religion, but on the Gospel of Jesus Christ. For that reason alone, people of other faiths have been afforded freedom of worship here." Patrick Henry 1776