sr20det come out of 200sx 180sx and silvia s14,s15 2 versions red top and black..black newer.. n suposibly better fuel wise ne ways
ca18det come out of silvias and 180sx
better motor than sr20 as bottem end is stronger alot of people say thay arnt but i have owned and driven both motors my prefference is ca18 higher reving and stronger..lighter.
fj20det geting long in the tooth..
hard 2 really get in good cond..
2 heavy and need 2 modifyed 2 get them really going... stock ca18det in a 120y will give u a very big smile trust me..