sr20speed said:I've never heard of that combo done before. I'm not sure if the SR18 head flows better but it would cause the compression ratio to raise due to smaller combustion chambers(how much I don't know, maybe .5 a point). It's an interesting idea. I'd like to know what you find out.
Then wouldn't the higher CR be better and make more power than a normal SR202001SEdemBoobs said:andreas miko has said that the sr18 head on a sr20 block would yield a 11:7:1 CR, or something of that sorts.
but it would get expensive to have to change out all the exhaust valves, seals, seats, etc.
but i suppose the only benifits of running the sr18 head would be the higher CR, and the ability to run any sr20 cam, aside from that wouldn't a sr20 be better?