I've done a recent engine change from a disco into my 110.I also had a 1.66 t/box in,which I've now swapped over for a 1.2 disco box...you may find the water pump sits at a slightly different angle for the bottom hose,but I just butchered one to fit.I also had to use the steering pump from the defender engine,as the fittings were completely different and had to change a pulley or two.You may also have to change the temp switch,mine still shows it's running hot.