Hi,
Well I would measure the scattershield [you do have one?] from the trans mount to the block mount,including the block off plate + the crank pilot bearing. That should tell you how long the input shaft should be.If it's the same length then get the correct clutch disk and a ford pressure plate to match that new steel flywheel.Plus throw out bearing,clutch fork, slave cylinder,reservoir,pedal, new driveshaft,etc.
Good luck, your C-6 will always be quicker off the line.
Perry.
