Sorry, But Chevy heads don't have freeze plugs in them. Never did.
The engine block has 8 plugs in it.
2 in the back where the fly-wheel is, 2 on each side of the block, and 2 in the front of the block on both sides of the timing cover. 1 of the plugs on each side of the block is hidden behind the motor mounts. You can't get to the one's on the back of the block unless you remove the transmission or pull the engine out.
yes
Go for it
Yes, you sure can.
usually a bad head gasket or cracked head
Yes they interchange
igot some 305 neads trying to find out if thay are big viles the numbers are 14014416
it is located on the bottom end of the head
if you have never done this before,i suggest you purchase a good manual for your car and follow the instructions.there is a long list of things that must be done in a certain order to remove/replace a head(s) and get it running again.
One of the easiest but to do it right , get a manual on your car.
I would replace the ignition control module that's in the distributor.
If the Buick 305 is really a Chevy 305, then the motor mounts will interchange with a Chevy 350.
On the flat of the block where the head sits towards the front of the engine.