If you aren't running a lift then you will need to modify the 1.3 pan and the oil pick up pipe, most people cut and shut the two pipes. On my conversion I cut off the part of the 1.6 pipe that goes into the oil pump, slipped it over the end of the 1.3 pipe and then welded it in place. I then bent the pipe to fit on the 1.6 engine and drilled and tapped one of the main bearing caps to hold it in place using the original tab.