why dont you just build you rb20.
There, now that's better...What up everyone? I need some help on which motor I should decide on getting. I have a 1990 240sx hatch and I used to have a rb20det but the motor blew and I need a new one. I have the money for a rb20det or a rb25det. I am not sure which one I should go with. However, I was curious, if I get the rb25det would I have to change anything or can I just install it and everything would be fine? I am on a tight budget and I need something that is a straight drop in.