As you are using a T-5 gearbox, I would look at custom 5" or 7" clutches, which should be readily available with the Ford type input shaft spline. Perhaps you already have this figured out, but the engine to gearbox mating housing and coupling would I think be the difficult part. This housing would have an impact on the flywheel diameter and stater options. r


Steve
Late 2012 M3W