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Forget videos, it is a real job, and it requires real experience. Would you perform heart surgery because you saw how it was done in a video tons of time ?
I have heard countless times the "i can do it", and it usually is followed by "i dumped 2000$ in parts and the engine died 500km later". And then there are bloody stupid people who don't understand the first time, and do it a second time. Like that stupid bloke who did not want to pay 3000€ in labor to assemble his 1000HP RB26DET, and ended up killing the head by badly tightening the timing system ... he then paid the tuner to rebuild the head, but he still did not want to pay the labor so he build the bottom end by himself again... needless to say, a rod welded itself to the crank while the tuner was bringing the car to a dyno. And he is still mad ... at the tuner. Not once did he even acknowledge he did something wrong. He even tried to go legal, that was quite a joke.
Fact is, finding an affordable, good engine builder is harder than finding the perfect wife, which says quite a lot on how hard that job is. It really is that simple: one mistake = dead engine.
Anyway, if you still want to give it a go, you really need clean space, quality measuring tools, machinists who know their job, source for available parts, and a budget. Do not open the engine before having all this.
IMHO a KA is not worth rebuilding. just buy another one and use it while it lasts. If you really want to do something stupid, do something stupidly fun, like slapping an LS1 in it.
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