just finished 300e and of course the head comes back perfect
and you have to worry about the bottom of the engine... most importantly are the bolt holes... i used q tips to get the water out and then i
used a tap i bought in a set from autozone for 18 bucks....

the tap really cleaned the holes... and it was important the get the absolute right size......i bought a nut for the bolts....



i used a razor scraper from big lots. 3 bucks... long handle it worked great.. and we used fine wet sand paper.... then i washed it 3 times with alchol...

the next time i do this i would like to use a copper head gasket... and i
would like some other way of cleaning the top...

i used a vac in the cylinders.