I have a 97 civic ex and the mechanic i took it to today because it shakes at idle told me that they swapped from stock 1.6 to a 1.9 in my car and didnt do the motor mounts right and thats why it shakes (hack job)

can anyone tell me why they would have done the swap from 1.6 to just 1.9 and not have done a bigger swap?

:confused: