? My friend has a Ron Jones Hydro with a Hemi that he put a transmission in with the hand clutch. He built this on a tilt trailer back in the 60's.
There are a lot of the "Schiada" boats with a turbo 400 transmission and a turbo charged motor. I do not know how they run the transmission as there is no torque converter in this setup and I've heard they remove 1st gear as it is to short to use in a boat.