The 18R engine is a 2.0ltr.
There is no Toyota engine called a "2LT". There is a 2T, which is a 1.6ltr.
If you are putting any other R series engine in, it will bolt in, the enigne mounts are the same.
22R block is a 22R block, although it is very similar to 20R and 21R. 22R is a 2.4ltr, 20R and 21R are both 2.0ltr.
Basically, i dont know what you are asking cause it doesnt make sense to me, but this might help.
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