That looks amazing! The link you provided on electrolysis is ng. I found this
http://users.eastlink.ca/~pspencer/nsaeta/electrolysis.html
Is it the same process?
Yes, this is the same process. That is one of the links I read. I did a lot of reading, and there are a lot of great videos on youtube also. I will check that link that I posted! Thanks for the heads up!
What the hell, that process eats through paint? I thought it was just a rust thing?
What is the difference between the guys talking about a hot tank and those ultrasonic cleaners?
I'm assuming there isn't a cheap way to run those fancy machines at home?
I wasn't sure it would remove the paint either. But since you are possitively charging the sacrificial steel, and negatively charging the good metal on the engine block. As the electrons want to travel off the block, they take whatever is on the block with them. And apparently this includes the paint, which I was very happy about!!!

And ultra sonic cleaner uses, heat, a cleaning agent, and I believe high frequency sound waves. The nice thing about them is that they will clean every nook and cranny of whatever is submerged.
The hot tank utilizes very hot, very hazardous cleaners. This is why a lot of shops don't use hot tanks anymore. The disposal of the liquid once used up is not easy or cheap for them. This is also why hot tanks aren't the best. A lot of shops use the solution too long do to how hard it is to get rid of.
I am sure making either at home is possible. An ultrasonic cleaner would probably be the better choice.
that looks damn good for the money.
I would say so. Still not perfect, and I plan on painting the block if it all works out ok. So that is my reason for wanting to use the hot tank also. I want all the oil build up GONE!
Here are a few motors I have built in the past. I have a thing for cleaned and functional engine bays!
84 GTI that never got finished- Traded for my 87 Jetta. But it did run and drive when I traded it!

73 Super

84 GTI's first 8valve

I look forward to seeing what I can do with this Diesel!