I am new to this board and interested in getting an opel kadette rallye. I had one 30 years ago and think it is time for another. My question is if I get one with the 1.1 or 1.5 liter engine and 4 speed will the 4 speed fit to a 1.9 l engine as that is what I really want. I intend to open the intake and more so it will breathe best. I want the German built opel so am I looking for 68 to 73 years? Thanks in advance.