1981 1751cc EK1 Performance Questions

[81 honda cobra]

Hello everybody my name is Dan and this is my first post to this forum. Some quick info about me, the first car I ever owned was a 1981 Honda Accord LX. It was my daily driver for years until I decided to turn it into a pro street hot rod To make a long story short I turned it to a rear wheel drive street machine! I had built a custom tube frame chassis, and dropped a 427 cubic inch big block V8 into it and I named it the Honda Cobra. But sadly I lost it in a fire about 5 years ago (I'll have to see if I can dig up some old pictures and post them) But I still have the original 1.8L EK1 engine from the honda cobra I'd like to restore it and squeeze as much power out of it as I can, and eventually put it into another 81 accord and I have lots as question. My first one is about cylinder head swaps. I've heard about people putting EL heads on EK1 motors. possible?