How to Properly paint and gunk engine?

Hey guys i believe im in the right thread for this but ive been neglecting my slant 6 for awhile now as far as appearance goes and ive never gunked an engine or painted one while still in the car. im told its easy to do and can look really nice if done right. i would like to go back to the torquise blue. can anyone shoot me some pointers or pictures from when they may have painted there block? how do i prep the engine to be painted? what needs to be blocked off? etcbster cell 555.jpeg 13643924_10206590370703325_1264220505_n.jpg