I'm fairly new to this forum and haven't posted before.

I know what I need to do to make the swap but am not sure what is required in the regard to getting the swap engineered. I've seen some people say that it wont need to be engineered as it is a reduction in displacement, I have also seen people saying that as there is a fair power increase it needs to be engineered.

I'm just wanting to clarify what I need to do because I don't want to get stuck into something and then have troubles with it later down the line. I'm in WA if that helps.

Thanks in advance.