23 to 18 spline posible?

Spend your money on a clutch, billet flywheel and blow proof bellhousing.
I only broke one 23 spline input and it snapped the shaft at the case.
Splines are still perfect, makes a great clutch alignment tool that I still use.
Got the blow proof bell the billet SFI flywheel and the clutch is on my wait to buy things, but i think i'll buy the sintered iron one or the ceramic puck one but in solid hub no spring hub for me, i like to slip it a litlle going out of the hole but not after that!