i have head off and this car has been sitting for 5 years i want to drain block completly since it got some oil in it while removing head. do i just unbolt the plug on block or is there a drain bolt. i have looked everywhere and on parts diagrams it just shows the bolts in front nothing in rear also if so when reinstalling do you have to put a sealant ?

 

in the front of the block behind the header there is a 3/8th size plug that u can use to drain
it. but if it was sittin for 5 yrs i doubt it will have anything in it