aha, now you aren't speaking scottish i can understand better

normal dohc 8 valve injection sierra will put out 125 brake
the one that comes with the catalytic converter, puts out 120 brake and has totlay different wiring
the carb'd version is very rare and very shit so don't bother with it

when putting your cossie lump in, use V6 2.9 front springs and upgrade the stoppers at the same time, 2wd discs and spacer brackets will do the job but you might as well get a big brake kit if you want to go the whole hog or get some 2wd standard hubs/suspension and stoppers if you want to wait a bit

you'll also need a rwd mt75 box that will fit the v6, not a lot around so look at the options for that (my way was to swap the bellhousing from the V6 engine'd 2.9 xr4x4 with input shaft onto the rest of the rwd mt75 box and be done with it, and everyone else followed afterwards)
if you get a 2.9 xr4x4 you can also swap the diff over, it'll be taller geared but not quite a direct fitment, so just swap over the whoel xr rear beam and get the rear arb to go along with it

while the box is apart for the swap, also consider the longer 5th gear mod, about £200 in parts from ford but worth the effort (another idea everyoens taken for granted yet first worked out, fitted and done by me and tony, mob)

you will also need the fuel pipes form the V6 as they are on the other side of the engien bay

you can also use the flywheel and pedal box from the V6 to mount a cossie clutch (with correct realease bearing) but use new flywheel bolts as the auto ones form the granada are too short for the manual flywheel, get it lightened at the same time and it will want to rev it's tits off

mark 24v wiring can sort you out with a plug and play loom and job jobbed

jus tmake sure that the rev counter works and you don't go beyond the redline as they tend to fall apart very quickly afterwards