Way to much work.Saok it with a good penetrating oil. PB is like pea to me I used castle at work and now use the WD40 penetrant.Then work it back and forth easy.use a spark plug socket.at worki must have remover a few hundred that werefrozen.I used the ratchet to get them moving the used my 3/8 impact on real low to work them back and forth till they came out.Even with aluminum heads and had plugs that wer in for decades on some they came out and no damage.On my old ram charger snow plow truck the plugs were so bad that even a Snapon plug socket would not get them out.The crumbled.I finally got a metric socket on and worked them out.No damage.Rocky