Quick Question

Got a whole tool box full of measuring tools (Dad was a machinist for over 40 years). What I don't have is a '66 torque converter. The trans and converter I have came out of a '73 Duster and the engine they were hooked to isn't ready to go in the car yet. I can buy an automatic floor shifter for what a clutch will cost and I want to switch to an automatic when the '73 engine is ready to go. Right now, my clutch pedal is stuck on the floor and the trans won't grab any gears.