Engine upgrade

I could only find 2 type of mivec engine: 4G92 Mivec , and 6A12 Mivec.
I don't go for turbo engine since petrol is quite expensive here.
Does anyone have their lancer fitted with those engine? How much does it cost?

Thanks before hand,

One of the two JDM engines is for better fuel consumption
I dont know about the price of petrol in your country but i used to own an integra GSR and i found evo consumption to be less than GSR
Just think about it